#VU104832 Race condition within a thread in Linux kernel - CVE-2022-49634

Vulnerability identifier: #VU104832

Vulnerability risk: Low

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

CVE-ID: CVE-2022-49634

CWE-ID: CWE-366

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to corrupt data.

The vulnerability exists due to a data race within the proc_dou8vec_minmax() function in kernel/sysctl.c. A local user can corrupt data.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/5f776daef0b5354615ec4b4234cd9539ca05f273
https://git.kernel.org/stable/c/7dee5d7747a69aa2be41f04c6a7ecfe3ac8cdf18
https://git.kernel.org/stable/c/e58b02e445463065b4078bf621561da75197853f
https://git.kernel.org/stable/c/f177b382c33900d0e5a9766493c11a1074076f78

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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.