Ubuntu update for linux-oem-5.14



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-29581
CWE-ID CWE-911
Exploitation vector Local
Public exploit N/A
Vulnerable software
Ubuntu
Operating systems & Components / Operating system

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

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

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

linux-image-5.14.0-1038-oem (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-5.17.0-1004-oem (Ubuntu package)
Operating systems & Components / Operating system package or component

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

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

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper update of reference count

EUVDB-ID: #VU63496

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-2022-29581

CWE-ID: CWE-911 - Improper Update of Reference Count

Exploit availability: No

Description

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

The vulnerability exists due to improper update of reference count in net/sched in Linux kernel. A local user can execute arbitrary code with root privileges.

Mitigation

Update the affected package linux-oem-5.14 to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-oem-20.04c (Ubuntu package): before 5.14.0.1038.35

linux-image-oem-20.04b (Ubuntu package): before 5.14.0.1038.35

linux-image-oem-20.04d (Ubuntu package): before 5.14.0.1038.35

linux-image-5.14.0-1038-oem (Ubuntu package): before 5.14.0-1038.42

linux-image-oem-20.04 (Ubuntu package): before 5.14.0.1038.35

linux-image-5.17.0-1004-oem (Ubuntu package): before 5.17.0-1004.4

linux-image-oem-22.04a (Ubuntu package): before 5.17.0.1004.4

linux-image-oem-22.04 (Ubuntu package): before 5.17.0.1004.4

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5444-1


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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