#VU104885 Buffer overflow in Linux kernel - CVE-2022-49164

Vulnerability identifier: #VU104885

Vulnerability 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-2022-49164

CWE-ID: CWE-119

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 perform a denial of service (DoS) attack.

The vulnerability exists due to memory corruption within the REST_GPR() and GET_PACA() functions in arch/powerpc/kernel/tm.S. A local user can perform a denial of service (DoS) attack.

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/5dce84f475d13b773a1a4c823581cab25044d86a
https://git.kernel.org/stable/c/73d8082c90f17dfba57cad4ca94db5cae323f1b1
https://git.kernel.org/stable/c/9d71165d3934e607070c4e48458c0cf161b1baea

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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.