Ubuntu update for linux-intel-iotg-5.15

1) Out-of-bounds read

EUVDB-ID: #VU73280

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-1380

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition within the Broadcom Full MAC Wi-Fi driver (brcmfmac.ko). A local user can trigger an out-of-bounds read error and read contents of kernel memory on the system.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.15.0.1031.36~20.04.23

linux-image-5.15.0-1031-intel-iotg (Ubuntu package): before 5.15.0-1031.36~20.04.1

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1031.36~20.04.23

CPE2.3

• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:*
• cpe:2.3::canonical:linux-image-intel_ubuntu_package:*:*:*:*:*:*:*:*
• cpe:2.3:a:canonical:linux-image-5.15.0-1031-intel-iotg_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3::canonical:linux-image-intel-iotg_ubuntu_package:*:*:*:*:*:*:*:*

External links

https://ubuntu.com/security/notices/USN-6162-1

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) Race condition

EUVDB-ID: #VU76655

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-2023-2612

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 (DoS) attack.

The vulnerability exists due to a race condition within the shiftfs filesystem when handling inode locking in some
situations. A local user can exploit the race and cause a denial of service (kernel deadlock).

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.15.0.1031.36~20.04.23

linux-image-5.15.0-1031-intel-iotg (Ubuntu package): before 5.15.0-1031.36~20.04.1

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1031.36~20.04.23

CPE2.3

• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:*
• cpe:2.3::canonical:linux-image-intel_ubuntu_package:*:*:*:*:*:*:*:*
• cpe:2.3:a:canonical:linux-image-5.15.0-1031-intel-iotg_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3::canonical:linux-image-intel-iotg_ubuntu_package:*:*:*:*:*:*:*:*

External links

https://ubuntu.com/security/notices/USN-6162-1

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) Input validation error

EUVDB-ID: #VU75456

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-2023-30456

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of consistency for for CR0 and CR4 in arch/x86/kvm/vmx/nested.c in the Linux kernel. A local user can execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.15.0.1031.36~20.04.23

linux-image-5.15.0-1031-intel-iotg (Ubuntu package): before 5.15.0-1031.36~20.04.1

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1031.36~20.04.23

CPE2.3

• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:*
• cpe:2.3::canonical:linux-image-intel_ubuntu_package:*:*:*:*:*:*:*:*
• cpe:2.3:a:canonical:linux-image-5.15.0-1031-intel-iotg_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3::canonical:linux-image-intel-iotg_ubuntu_package:*:*:*:*:*:*:*:*

External links

https://ubuntu.com/security/notices/USN-6162-1

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) Out-of-bounds write

EUVDB-ID: #VU76098

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-2023-31436

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 within the qfq_change_class() function in net/sched/sch_qfq.c when handling the MTU value provided to the QFQ Scheduler. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.15.0.1031.36~20.04.23

linux-image-5.15.0-1031-intel-iotg (Ubuntu package): before 5.15.0-1031.36~20.04.1

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1031.36~20.04.23

CPE2.3

• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:*
• cpe:2.3::canonical:linux-image-intel_ubuntu_package:*:*:*:*:*:*:*:*
• cpe:2.3:a:canonical:linux-image-5.15.0-1031-intel-iotg_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3::canonical:linux-image-intel-iotg_ubuntu_package:*:*:*:*:*:*:*:*

External links

https://ubuntu.com/security/notices/USN-6162-1

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) Use-after-free

EUVDB-ID: #VU75807

Risk: Low

CVSSv4.0: 7.1 [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:P/U:Clear]

CVE-ID: CVE-2023-32233

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes

Description

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

The vulnerability exists due to a use-after-free error in Netfilter nf_tables when processing batch requests. A local user can trigger a use-after-free error and execute arbitrary code with root privileges.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel (Ubuntu package): before 5.15.0.1031.36~20.04.23

linux-image-5.15.0-1031-intel-iotg (Ubuntu package): before 5.15.0-1031.36~20.04.1

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1031.36~20.04.23

CPE2.3

• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:*
• cpe:2.3::canonical:linux-image-intel_ubuntu_package:*:*:*:*:*:*:*:*
• cpe:2.3:a:canonical:linux-image-5.15.0-1031-intel-iotg_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3::canonical:linux-image-intel-iotg_ubuntu_package:*:*:*:*:*:*:*:*

External links

https://ubuntu.com/security/notices/USN-6162-1

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. However, proof of concept for this vulnerability is available.