Ubuntu update for linux



Risk Low
Patch available YES
Number of vulnerabilities 13
CVE-ID CVE-2021-28038
CVE-2021-28660
CVE-2021-28688
CVE-2021-28950
CVE-2021-28952
CVE-2021-28964
CVE-2021-28971
CVE-2021-28972
CVE-2021-29647
CVE-2021-30002
CVE-2021-31916
CVE-2021-33033
CVE-2021-3483
CWE-ID CWE-770
CWE-787
CWE-665
CWE-834
CWE-119
CWE-362
CWE-400
CWE-200
CWE-401
CWE-416
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

linux-image-raspi (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-virtual-hwe-20.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-lowlatency-hwe-20.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-lpae-hwe-20.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-hwe-20.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-64k-hwe-20.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-virtual (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-raspi-nolpae (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-oracle (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-lowlatency (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-kvm (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-gke (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-lpae (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-64k (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-gcp (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-azure (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-aws (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.8.0-55-lowlatency (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.8.0-55-generic-lpae (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.8.0-55-generic-64k (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.8.0-55-generic (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.8.0-1035-aws (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.8.0-1033-azure (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.8.0-1032-gcp (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.8.0-1031-oracle (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.8.0-1028-kvm (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.8.0-1026-raspi-nolpae (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.8.0-1026-raspi (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 13 vulnerabilities.

1) Allocation of resources without limits or throttling

EUVDB-ID: #VU92417

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-28038

CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling

Exploit availability: No

Description

The vulnerability allows a local user to a crash the entire system.

The vulnerability exists due to allocation of resources without limits or throttling error within the xenvif_tx_action() function in drivers/net/xen-netback/netback.c. A local user can a crash the entire system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 20.10

linux-image-raspi (Ubuntu package): before 5.8.0.1026.29

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-virtual (Ubuntu package): before 5.8.0.55.60

linux-image-raspi-nolpae (Ubuntu package): before 5.8.0.1026.29

linux-image-oracle (Ubuntu package): before 5.8.0.1031.30

linux-image-lowlatency (Ubuntu package): before 5.8.0.55.60

linux-image-kvm (Ubuntu package): before 5.8.0.1028.30

linux-image-gke (Ubuntu package): before 5.8.0.1032.32

linux-image-generic-lpae (Ubuntu package): before 5.8.0.55.60

linux-image-generic-64k (Ubuntu package): before 5.8.0.55.60

linux-image-generic (Ubuntu package): before 5.8.0.55.60

linux-image-gcp (Ubuntu package): before 5.8.0.1032.32

linux-image-azure (Ubuntu package): before 5.8.0.1033.33

linux-image-aws (Ubuntu package): before 5.8.0.1035.37

linux-image-5.8.0-55-lowlatency (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-lpae (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-64k (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-1035-aws (Ubuntu package): before 5.8.0-1035.37

linux-image-5.8.0-1033-azure (Ubuntu package): before 5.8.0-1033.35

linux-image-5.8.0-1032-gcp (Ubuntu package): before 5.8.0-1032.34

linux-image-5.8.0-1031-oracle (Ubuntu package): before 5.8.0-1031.32

linux-image-5.8.0-1028-kvm (Ubuntu package): before 5.8.0-1028.30

linux-image-5.8.0-1026-raspi-nolpae (Ubuntu package): before 5.8.0-1026.29

linux-image-5.8.0-1026-raspi (Ubuntu package): before 5.8.0-1026.29

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4984-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Out-of-bounds write

EUVDB-ID: #VU56817

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-28660

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the "rtw_wx_set_scan" in drivers/staging/rtl8188eu/os_dep/ioctl_linux.c. A local user can trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 20.10

linux-image-raspi (Ubuntu package): before 5.8.0.1026.29

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-virtual (Ubuntu package): before 5.8.0.55.60

linux-image-raspi-nolpae (Ubuntu package): before 5.8.0.1026.29

linux-image-oracle (Ubuntu package): before 5.8.0.1031.30

linux-image-lowlatency (Ubuntu package): before 5.8.0.55.60

linux-image-kvm (Ubuntu package): before 5.8.0.1028.30

linux-image-gke (Ubuntu package): before 5.8.0.1032.32

linux-image-generic-lpae (Ubuntu package): before 5.8.0.55.60

linux-image-generic-64k (Ubuntu package): before 5.8.0.55.60

linux-image-generic (Ubuntu package): before 5.8.0.55.60

linux-image-gcp (Ubuntu package): before 5.8.0.1032.32

linux-image-azure (Ubuntu package): before 5.8.0.1033.33

linux-image-aws (Ubuntu package): before 5.8.0.1035.37

linux-image-5.8.0-55-lowlatency (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-lpae (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-64k (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-1035-aws (Ubuntu package): before 5.8.0-1035.37

linux-image-5.8.0-1033-azure (Ubuntu package): before 5.8.0-1033.35

linux-image-5.8.0-1032-gcp (Ubuntu package): before 5.8.0-1032.34

linux-image-5.8.0-1031-oracle (Ubuntu package): before 5.8.0-1031.32

linux-image-5.8.0-1028-kvm (Ubuntu package): before 5.8.0-1028.30

linux-image-5.8.0-1026-raspi-nolpae (Ubuntu package): before 5.8.0-1026.29

linux-image-5.8.0-1026-raspi (Ubuntu package): before 5.8.0-1026.29

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4984-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Improper Initialization

EUVDB-ID: #VU63658

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-28688

CWE-ID: CWE-665 - Improper Initialization

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service attack.

The vulnerability exists due to improper initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. A local user can perform a denial of service attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 20.10

linux-image-raspi (Ubuntu package): before 5.8.0.1026.29

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-virtual (Ubuntu package): before 5.8.0.55.60

linux-image-raspi-nolpae (Ubuntu package): before 5.8.0.1026.29

linux-image-oracle (Ubuntu package): before 5.8.0.1031.30

linux-image-lowlatency (Ubuntu package): before 5.8.0.55.60

linux-image-kvm (Ubuntu package): before 5.8.0.1028.30

linux-image-gke (Ubuntu package): before 5.8.0.1032.32

linux-image-generic-lpae (Ubuntu package): before 5.8.0.55.60

linux-image-generic-64k (Ubuntu package): before 5.8.0.55.60

linux-image-generic (Ubuntu package): before 5.8.0.55.60

linux-image-gcp (Ubuntu package): before 5.8.0.1032.32

linux-image-azure (Ubuntu package): before 5.8.0.1033.33

linux-image-aws (Ubuntu package): before 5.8.0.1035.37

linux-image-5.8.0-55-lowlatency (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-lpae (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-64k (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-1035-aws (Ubuntu package): before 5.8.0-1035.37

linux-image-5.8.0-1033-azure (Ubuntu package): before 5.8.0-1033.35

linux-image-5.8.0-1032-gcp (Ubuntu package): before 5.8.0-1032.34

linux-image-5.8.0-1031-oracle (Ubuntu package): before 5.8.0-1031.32

linux-image-5.8.0-1028-kvm (Ubuntu package): before 5.8.0-1028.30

linux-image-5.8.0-1026-raspi-nolpae (Ubuntu package): before 5.8.0-1026.29

linux-image-5.8.0-1026-raspi (Ubuntu package): before 5.8.0-1026.29

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4984-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Excessive Iteration

EUVDB-ID: #VU58207

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-28950

CWE-ID: CWE-834 - Excessive Iteration

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to excessive iteration in fs/fuse/fuse_i.h in the Linux kernel. A local user can run a specially crafted program to perform a denial of service attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 20.10

linux-image-raspi (Ubuntu package): before 5.8.0.1026.29

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-virtual (Ubuntu package): before 5.8.0.55.60

linux-image-raspi-nolpae (Ubuntu package): before 5.8.0.1026.29

linux-image-oracle (Ubuntu package): before 5.8.0.1031.30

linux-image-lowlatency (Ubuntu package): before 5.8.0.55.60

linux-image-kvm (Ubuntu package): before 5.8.0.1028.30

linux-image-gke (Ubuntu package): before 5.8.0.1032.32

linux-image-generic-lpae (Ubuntu package): before 5.8.0.55.60

linux-image-generic-64k (Ubuntu package): before 5.8.0.55.60

linux-image-generic (Ubuntu package): before 5.8.0.55.60

linux-image-gcp (Ubuntu package): before 5.8.0.1032.32

linux-image-azure (Ubuntu package): before 5.8.0.1033.33

linux-image-aws (Ubuntu package): before 5.8.0.1035.37

linux-image-5.8.0-55-lowlatency (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-lpae (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-64k (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-1035-aws (Ubuntu package): before 5.8.0-1035.37

linux-image-5.8.0-1033-azure (Ubuntu package): before 5.8.0-1033.35

linux-image-5.8.0-1032-gcp (Ubuntu package): before 5.8.0-1032.34

linux-image-5.8.0-1031-oracle (Ubuntu package): before 5.8.0-1031.32

linux-image-5.8.0-1028-kvm (Ubuntu package): before 5.8.0-1028.30

linux-image-5.8.0-1026-raspi-nolpae (Ubuntu package): before 5.8.0-1026.29

linux-image-5.8.0-1026-raspi (Ubuntu package): before 5.8.0-1026.29

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4984-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Buffer overflow

EUVDB-ID: #VU59694

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-28952

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in the sound/soc/qcom/sdm845.c soundwire device driver in Linux kernel. A local user can run a specially crafted program to trigger a buffer overflow, when an unexpected port ID number is encountered, and execute arbitrary code on the system with elevated privileges.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 20.10

linux-image-raspi (Ubuntu package): before 5.8.0.1026.29

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-virtual (Ubuntu package): before 5.8.0.55.60

linux-image-raspi-nolpae (Ubuntu package): before 5.8.0.1026.29

linux-image-oracle (Ubuntu package): before 5.8.0.1031.30

linux-image-lowlatency (Ubuntu package): before 5.8.0.55.60

linux-image-kvm (Ubuntu package): before 5.8.0.1028.30

linux-image-gke (Ubuntu package): before 5.8.0.1032.32

linux-image-generic-lpae (Ubuntu package): before 5.8.0.55.60

linux-image-generic-64k (Ubuntu package): before 5.8.0.55.60

linux-image-generic (Ubuntu package): before 5.8.0.55.60

linux-image-gcp (Ubuntu package): before 5.8.0.1032.32

linux-image-azure (Ubuntu package): before 5.8.0.1033.33

linux-image-aws (Ubuntu package): before 5.8.0.1035.37

linux-image-5.8.0-55-lowlatency (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-lpae (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-64k (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-1035-aws (Ubuntu package): before 5.8.0-1035.37

linux-image-5.8.0-1033-azure (Ubuntu package): before 5.8.0-1033.35

linux-image-5.8.0-1032-gcp (Ubuntu package): before 5.8.0-1032.34

linux-image-5.8.0-1031-oracle (Ubuntu package): before 5.8.0-1031.32

linux-image-5.8.0-1028-kvm (Ubuntu package): before 5.8.0-1028.30

linux-image-5.8.0-1026-raspi-nolpae (Ubuntu package): before 5.8.0-1026.29

linux-image-5.8.0-1026-raspi (Ubuntu package): before 5.8.0-1026.29

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4984-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Race condition

EUVDB-ID: #VU63573

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-28964

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service attack.

The vulnerability exists due to a race condition in the get_old_root() function in fs/btrfs/ctree.c component in the Linux kernel. A local user can exploit the race and perform a denial of service attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 20.10

linux-image-raspi (Ubuntu package): before 5.8.0.1026.29

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-virtual (Ubuntu package): before 5.8.0.55.60

linux-image-raspi-nolpae (Ubuntu package): before 5.8.0.1026.29

linux-image-oracle (Ubuntu package): before 5.8.0.1031.30

linux-image-lowlatency (Ubuntu package): before 5.8.0.55.60

linux-image-kvm (Ubuntu package): before 5.8.0.1028.30

linux-image-gke (Ubuntu package): before 5.8.0.1032.32

linux-image-generic-lpae (Ubuntu package): before 5.8.0.55.60

linux-image-generic-64k (Ubuntu package): before 5.8.0.55.60

linux-image-generic (Ubuntu package): before 5.8.0.55.60

linux-image-gcp (Ubuntu package): before 5.8.0.1032.32

linux-image-azure (Ubuntu package): before 5.8.0.1033.33

linux-image-aws (Ubuntu package): before 5.8.0.1035.37

linux-image-5.8.0-55-lowlatency (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-lpae (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-64k (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-1035-aws (Ubuntu package): before 5.8.0-1035.37

linux-image-5.8.0-1033-azure (Ubuntu package): before 5.8.0-1033.35

linux-image-5.8.0-1032-gcp (Ubuntu package): before 5.8.0-1032.34

linux-image-5.8.0-1031-oracle (Ubuntu package): before 5.8.0-1031.32

linux-image-5.8.0-1028-kvm (Ubuntu package): before 5.8.0-1028.30

linux-image-5.8.0-1026-raspi-nolpae (Ubuntu package): before 5.8.0-1026.29

linux-image-5.8.0-1026-raspi (Ubuntu package): before 5.8.0-1026.29

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4984-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Resource exhaustion

EUVDB-ID: #VU64830

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-28971

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to mishandling of PEBS status in a PEBS record In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux kernel. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 20.10

linux-image-raspi (Ubuntu package): before 5.8.0.1026.29

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-virtual (Ubuntu package): before 5.8.0.55.60

linux-image-raspi-nolpae (Ubuntu package): before 5.8.0.1026.29

linux-image-oracle (Ubuntu package): before 5.8.0.1031.30

linux-image-lowlatency (Ubuntu package): before 5.8.0.55.60

linux-image-kvm (Ubuntu package): before 5.8.0.1028.30

linux-image-gke (Ubuntu package): before 5.8.0.1032.32

linux-image-generic-lpae (Ubuntu package): before 5.8.0.55.60

linux-image-generic-64k (Ubuntu package): before 5.8.0.55.60

linux-image-generic (Ubuntu package): before 5.8.0.55.60

linux-image-gcp (Ubuntu package): before 5.8.0.1032.32

linux-image-azure (Ubuntu package): before 5.8.0.1033.33

linux-image-aws (Ubuntu package): before 5.8.0.1035.37

linux-image-5.8.0-55-lowlatency (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-lpae (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-64k (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-1035-aws (Ubuntu package): before 5.8.0-1035.37

linux-image-5.8.0-1033-azure (Ubuntu package): before 5.8.0-1033.35

linux-image-5.8.0-1032-gcp (Ubuntu package): before 5.8.0-1032.34

linux-image-5.8.0-1031-oracle (Ubuntu package): before 5.8.0-1031.32

linux-image-5.8.0-1028-kvm (Ubuntu package): before 5.8.0-1028.30

linux-image-5.8.0-1026-raspi-nolpae (Ubuntu package): before 5.8.0-1026.29

linux-image-5.8.0-1026-raspi (Ubuntu package): before 5.8.0-1026.29

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4984-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Buffer overflow

EUVDB-ID: #VU56819

Risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-28972

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the drivers/pci/hotplug/rpadlpar_sysfs.c. A local administrator can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 20.10

linux-image-raspi (Ubuntu package): before 5.8.0.1026.29

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-virtual (Ubuntu package): before 5.8.0.55.60

linux-image-raspi-nolpae (Ubuntu package): before 5.8.0.1026.29

linux-image-oracle (Ubuntu package): before 5.8.0.1031.30

linux-image-lowlatency (Ubuntu package): before 5.8.0.55.60

linux-image-kvm (Ubuntu package): before 5.8.0.1028.30

linux-image-gke (Ubuntu package): before 5.8.0.1032.32

linux-image-generic-lpae (Ubuntu package): before 5.8.0.55.60

linux-image-generic-64k (Ubuntu package): before 5.8.0.55.60

linux-image-generic (Ubuntu package): before 5.8.0.55.60

linux-image-gcp (Ubuntu package): before 5.8.0.1032.32

linux-image-azure (Ubuntu package): before 5.8.0.1033.33

linux-image-aws (Ubuntu package): before 5.8.0.1035.37

linux-image-5.8.0-55-lowlatency (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-lpae (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-64k (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-1035-aws (Ubuntu package): before 5.8.0-1035.37

linux-image-5.8.0-1033-azure (Ubuntu package): before 5.8.0-1033.35

linux-image-5.8.0-1032-gcp (Ubuntu package): before 5.8.0-1032.34

linux-image-5.8.0-1031-oracle (Ubuntu package): before 5.8.0-1031.32

linux-image-5.8.0-1028-kvm (Ubuntu package): before 5.8.0-1028.30

linux-image-5.8.0-1026-raspi-nolpae (Ubuntu package): before 5.8.0-1026.29

linux-image-5.8.0-1026-raspi (Ubuntu package): before 5.8.0-1026.29

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4984-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) Information disclosure

EUVDB-ID: #VU57040

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-29647

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to an error in qrtr_recvmsg(0 function in net/qrtr/qrtr.c caused by a partially uninitialized data structure. A local user can read sensitive information from kernel memory.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 20.10

linux-image-raspi (Ubuntu package): before 5.8.0.1026.29

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-virtual (Ubuntu package): before 5.8.0.55.60

linux-image-raspi-nolpae (Ubuntu package): before 5.8.0.1026.29

linux-image-oracle (Ubuntu package): before 5.8.0.1031.30

linux-image-lowlatency (Ubuntu package): before 5.8.0.55.60

linux-image-kvm (Ubuntu package): before 5.8.0.1028.30

linux-image-gke (Ubuntu package): before 5.8.0.1032.32

linux-image-generic-lpae (Ubuntu package): before 5.8.0.55.60

linux-image-generic-64k (Ubuntu package): before 5.8.0.55.60

linux-image-generic (Ubuntu package): before 5.8.0.55.60

linux-image-gcp (Ubuntu package): before 5.8.0.1032.32

linux-image-azure (Ubuntu package): before 5.8.0.1033.33

linux-image-aws (Ubuntu package): before 5.8.0.1035.37

linux-image-5.8.0-55-lowlatency (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-lpae (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-64k (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-1035-aws (Ubuntu package): before 5.8.0-1035.37

linux-image-5.8.0-1033-azure (Ubuntu package): before 5.8.0-1033.35

linux-image-5.8.0-1032-gcp (Ubuntu package): before 5.8.0-1032.34

linux-image-5.8.0-1031-oracle (Ubuntu package): before 5.8.0-1031.32

linux-image-5.8.0-1028-kvm (Ubuntu package): before 5.8.0-1028.30

linux-image-5.8.0-1026-raspi-nolpae (Ubuntu package): before 5.8.0-1026.29

linux-image-5.8.0-1026-raspi (Ubuntu package): before 5.8.0-1026.29

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4984-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Memory leak

EUVDB-ID: #VU68552

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-30002

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a local user to perform DoS attack on the target system.

The vulnerability exists due memory leak within the webcam support driver in video_usercopy() function in drivers/media/v4l2-core/v4l2-ioctl.c in Linux kernel. A local user can trigger leak memory and perform denial of service attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 20.10

linux-image-raspi (Ubuntu package): before 5.8.0.1026.29

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-virtual (Ubuntu package): before 5.8.0.55.60

linux-image-raspi-nolpae (Ubuntu package): before 5.8.0.1026.29

linux-image-oracle (Ubuntu package): before 5.8.0.1031.30

linux-image-lowlatency (Ubuntu package): before 5.8.0.55.60

linux-image-kvm (Ubuntu package): before 5.8.0.1028.30

linux-image-gke (Ubuntu package): before 5.8.0.1032.32

linux-image-generic-lpae (Ubuntu package): before 5.8.0.55.60

linux-image-generic-64k (Ubuntu package): before 5.8.0.55.60

linux-image-generic (Ubuntu package): before 5.8.0.55.60

linux-image-gcp (Ubuntu package): before 5.8.0.1032.32

linux-image-azure (Ubuntu package): before 5.8.0.1033.33

linux-image-aws (Ubuntu package): before 5.8.0.1035.37

linux-image-5.8.0-55-lowlatency (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-lpae (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-64k (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-1035-aws (Ubuntu package): before 5.8.0-1035.37

linux-image-5.8.0-1033-azure (Ubuntu package): before 5.8.0-1033.35

linux-image-5.8.0-1032-gcp (Ubuntu package): before 5.8.0-1032.34

linux-image-5.8.0-1031-oracle (Ubuntu package): before 5.8.0-1031.32

linux-image-5.8.0-1028-kvm (Ubuntu package): before 5.8.0-1028.30

linux-image-5.8.0-1026-raspi-nolpae (Ubuntu package): before 5.8.0-1026.29

linux-image-5.8.0-1026-raspi (Ubuntu package): before 5.8.0-1026.29

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4984-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) Out-of-bounds write

EUVDB-ID: #VU63574

Risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-31916

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module. A special user (CAP_SYS_ADMIN) can trigger a buffer overflow in the ioctl for listing devices and escalate privileges on the system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 20.10

linux-image-raspi (Ubuntu package): before 5.8.0.1026.29

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-virtual (Ubuntu package): before 5.8.0.55.60

linux-image-raspi-nolpae (Ubuntu package): before 5.8.0.1026.29

linux-image-oracle (Ubuntu package): before 5.8.0.1031.30

linux-image-lowlatency (Ubuntu package): before 5.8.0.55.60

linux-image-kvm (Ubuntu package): before 5.8.0.1028.30

linux-image-gke (Ubuntu package): before 5.8.0.1032.32

linux-image-generic-lpae (Ubuntu package): before 5.8.0.55.60

linux-image-generic-64k (Ubuntu package): before 5.8.0.55.60

linux-image-generic (Ubuntu package): before 5.8.0.55.60

linux-image-gcp (Ubuntu package): before 5.8.0.1032.32

linux-image-azure (Ubuntu package): before 5.8.0.1033.33

linux-image-aws (Ubuntu package): before 5.8.0.1035.37

linux-image-5.8.0-55-lowlatency (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-lpae (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-64k (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-1035-aws (Ubuntu package): before 5.8.0-1035.37

linux-image-5.8.0-1033-azure (Ubuntu package): before 5.8.0-1033.35

linux-image-5.8.0-1032-gcp (Ubuntu package): before 5.8.0-1032.34

linux-image-5.8.0-1031-oracle (Ubuntu package): before 5.8.0-1031.32

linux-image-5.8.0-1028-kvm (Ubuntu package): before 5.8.0-1028.30

linux-image-5.8.0-1026-raspi-nolpae (Ubuntu package): before 5.8.0-1026.29

linux-image-5.8.0-1026-raspi (Ubuntu package): before 5.8.0-1026.29

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4984-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

12) Use-after-free

EUVDB-ID: #VU55261

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-33033

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper handling of the CIPSO and CALIPSO refcounting for the DOI definitions in cipso_v4_genopt(0 function in net/ipv4/cipso_ipv4.c in Linux kernel. A local user can trigger a use-after-free error and execute arbitrary code with escalated privileges.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 20.10

linux-image-raspi (Ubuntu package): before 5.8.0.1026.29

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-virtual (Ubuntu package): before 5.8.0.55.60

linux-image-raspi-nolpae (Ubuntu package): before 5.8.0.1026.29

linux-image-oracle (Ubuntu package): before 5.8.0.1031.30

linux-image-lowlatency (Ubuntu package): before 5.8.0.55.60

linux-image-kvm (Ubuntu package): before 5.8.0.1028.30

linux-image-gke (Ubuntu package): before 5.8.0.1032.32

linux-image-generic-lpae (Ubuntu package): before 5.8.0.55.60

linux-image-generic-64k (Ubuntu package): before 5.8.0.55.60

linux-image-generic (Ubuntu package): before 5.8.0.55.60

linux-image-gcp (Ubuntu package): before 5.8.0.1032.32

linux-image-azure (Ubuntu package): before 5.8.0.1033.33

linux-image-aws (Ubuntu package): before 5.8.0.1035.37

linux-image-5.8.0-55-lowlatency (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-lpae (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-64k (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-1035-aws (Ubuntu package): before 5.8.0-1035.37

linux-image-5.8.0-1033-azure (Ubuntu package): before 5.8.0-1033.35

linux-image-5.8.0-1032-gcp (Ubuntu package): before 5.8.0-1032.34

linux-image-5.8.0-1031-oracle (Ubuntu package): before 5.8.0-1031.32

linux-image-5.8.0-1028-kvm (Ubuntu package): before 5.8.0-1028.30

linux-image-5.8.0-1026-raspi-nolpae (Ubuntu package): before 5.8.0-1026.29

linux-image-5.8.0-1026-raspi (Ubuntu package): before 5.8.0-1026.29

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4984-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

13) Use-after-free

EUVDB-ID: #VU63659

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-3483

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in the Nosy driver in the Linux kernel. A local user can trigger use-after-free and to escalate privileges on the system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 20.10

linux-image-raspi (Ubuntu package): before 5.8.0.1026.29

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.8.0.55.62~20.04.39

linux-image-virtual (Ubuntu package): before 5.8.0.55.60

linux-image-raspi-nolpae (Ubuntu package): before 5.8.0.1026.29

linux-image-oracle (Ubuntu package): before 5.8.0.1031.30

linux-image-lowlatency (Ubuntu package): before 5.8.0.55.60

linux-image-kvm (Ubuntu package): before 5.8.0.1028.30

linux-image-gke (Ubuntu package): before 5.8.0.1032.32

linux-image-generic-lpae (Ubuntu package): before 5.8.0.55.60

linux-image-generic-64k (Ubuntu package): before 5.8.0.55.60

linux-image-generic (Ubuntu package): before 5.8.0.55.60

linux-image-gcp (Ubuntu package): before 5.8.0.1032.32

linux-image-azure (Ubuntu package): before 5.8.0.1033.33

linux-image-aws (Ubuntu package): before 5.8.0.1035.37

linux-image-5.8.0-55-lowlatency (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-lpae (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic-64k (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-55-generic (Ubuntu package): before 5.8.0-55.62~20.04.1

linux-image-5.8.0-1035-aws (Ubuntu package): before 5.8.0-1035.37

linux-image-5.8.0-1033-azure (Ubuntu package): before 5.8.0-1033.35

linux-image-5.8.0-1032-gcp (Ubuntu package): before 5.8.0-1032.34

linux-image-5.8.0-1031-oracle (Ubuntu package): before 5.8.0-1031.32

linux-image-5.8.0-1028-kvm (Ubuntu package): before 5.8.0-1028.30

linux-image-5.8.0-1026-raspi-nolpae (Ubuntu package): before 5.8.0-1026.29

linux-image-5.8.0-1026-raspi (Ubuntu package): before 5.8.0-1026.29

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4984-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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