Ubuntu update for linux



| Updated: 2023-07-02
Risk Low
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2022-1652
CVE-2022-1679
CVE-2022-28893
CVE-2022-34918
CWE-ID CWE-416
CWE-843
Exploitation vector Local
Public exploit Vulnerability #4 is being exploited in the wild.
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

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

linux-image-lowlatency-64k-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-lowlatency-hwe-20.04 (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-lowlatency-64k-hwe-22.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-lpae-hwe-22.04 (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-5.15.0-43-lowlatency-64k (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-64k-hwe-22.04 (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-oem-20.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.15.0-43-lowlatency (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.15.0-43-generic-lpae (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-hwe-22.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.15.0-43-generic-64k (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-virtual-hwe-22.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.15.0-43-generic (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-lowlatency-hwe-22.04 (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-virtual (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU64434

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-2022-1652

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 use-after-free error in the bad_flp_intr() function. A local user can execute a specially-crafted program to cause a denial of service condition on the system or escalate privileges on the system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-lowlatency-64k (Ubuntu package): before 5.15.0.43.41

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-lowlatency-64k-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.13

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.13

linux-image-lowlatency (Ubuntu package): before 5.15.0.43.41

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 5.15.0.43.41

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-generic-lpae (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-lowlatency-64k (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-generic (Ubuntu package): before 5.15.0.43.44

linux-image-oem-20.04 (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-lowlatency (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-5.15.0-43-generic-lpae (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-generic-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-generic-64k (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-virtual-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-generic (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 5.15.0.43.41

linux-image-generic-64k (Ubuntu package): before 5.15.0.43.44

linux-image-virtual (Ubuntu package): before 5.15.0.43.44

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5544-1


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) Use-after-free

EUVDB-ID: #VU64861

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-2022-1679

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 within the ath9k_htc_wait_for_target() function in the Linux kernel’s Atheros wireless adapter driver. A local user can execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-lowlatency-64k (Ubuntu package): before 5.15.0.43.41

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-lowlatency-64k-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.13

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.13

linux-image-lowlatency (Ubuntu package): before 5.15.0.43.41

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 5.15.0.43.41

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-generic-lpae (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-lowlatency-64k (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-generic (Ubuntu package): before 5.15.0.43.44

linux-image-oem-20.04 (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-lowlatency (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-5.15.0-43-generic-lpae (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-generic-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-generic-64k (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-virtual-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-generic (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 5.15.0.43.41

linux-image-generic-64k (Ubuntu package): before 5.15.0.43.44

linux-image-virtual (Ubuntu package): before 5.15.0.43.44

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5544-1


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) Use-after-free

EUVDB-ID: #VU62074

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-2022-28893

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 within the SUNRPC subsystem in the Linux kernel. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-lowlatency-64k (Ubuntu package): before 5.15.0.43.41

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-lowlatency-64k-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.13

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.13

linux-image-lowlatency (Ubuntu package): before 5.15.0.43.41

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 5.15.0.43.41

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-generic-lpae (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-lowlatency-64k (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-generic (Ubuntu package): before 5.15.0.43.44

linux-image-oem-20.04 (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-lowlatency (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-5.15.0-43-generic-lpae (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-generic-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-generic-64k (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-virtual-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-generic (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 5.15.0.43.41

linux-image-generic-64k (Ubuntu package): before 5.15.0.43.44

linux-image-virtual (Ubuntu package): before 5.15.0.43.44

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5544-1


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) Type Confusion

EUVDB-ID: #VU65360

Risk: Low

CVSSv4.0: 8.5 [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:A/U:Clear]

CVE-ID: CVE-2022-34918

CWE-ID: CWE-843 - Type confusion

Exploit availability: Yes

Description

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

The vulnerability exists in the Linux kernel’s Netfilter subsystem in the way a user provides incorrect input of the NFT_DATA_VERDICT type. A local user can pass specially crafted data to the application, trigger a type confusion error and escalate privileges on the system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-lowlatency-64k (Ubuntu package): before 5.15.0.43.41

linux-image-generic-lpae-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-virtual-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-lowlatency-64k-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.13

linux-image-generic-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-generic-64k-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.14

linux-image-lowlatency-hwe-20.04 (Ubuntu package): before 5.15.0.43.46~20.04.13

linux-image-lowlatency (Ubuntu package): before 5.15.0.43.41

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 5.15.0.43.41

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-generic-lpae (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-lowlatency-64k (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-generic (Ubuntu package): before 5.15.0.43.44

linux-image-oem-20.04 (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-lowlatency (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-5.15.0-43-generic-lpae (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-generic-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-generic-64k (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-virtual-hwe-22.04 (Ubuntu package): before 5.15.0.43.44

linux-image-5.15.0-43-generic (Ubuntu package): before 5.15.0-43.46~20.04.1

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 5.15.0.43.41

linux-image-generic-64k (Ubuntu package): before 5.15.0.43.44

linux-image-virtual (Ubuntu package): before 5.15.0.43.44

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5544-1


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?

Yes. This vulnerability is being exploited in the wild.



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