Privilege escalation in Linux kernel XFRM subsystem



Published: 2022-09-20
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-3028
CWE-ID CWE-362
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Race condition

EUVDB-ID: #VU67477

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-3028

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 escalate privileges on the system.

The vulnerability exists due to a race condition in the Linux kernel's IP framework for transforming packets (XFRM subsystem) when multiple calls to xfrm_probe_algs occurred simultaneously. A local user can exploit the race and escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions


CPE2.3 External links

http://github.com/torvalds/linux/commit/ba953a9d89a00c078b85f4b190bc1dde66fe16b5
http://lore.kernel.org/all/YtoWqEkKzvimzWS5@gondor.apana.org.au/T/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/F3MYP7WX4PNE6RCITVXA43CECBZT4CL6/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JKVA75UHKVOHNOEPCLUHTFGWCOOUBDM3/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PEQYVCNYUWB4CJ2YRAYNF2GGFQ7SUYC4/

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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