#VU104527 Out-of-bounds read in Linux kernel - CVE-2022-49251

Vulnerability identifier: #VU104527

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-2022-49251

CWE-ID: CWE-125

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 an out-of-bounds read error within the va_macro_dec_mode_get() and va_macro_dec_mode_put() functions in sound/soc/codecs/lpass-va-macro.c. 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/0ea5eff7c6063a8f124188424f8e4c6727f35051
https://git.kernel.org/stable/c/4a799972a283ab4ec031041304d7e2d34e1a16eb
https://git.kernel.org/stable/c/966408e37d84b762d11978b7bfb03fff0c6222ad
https://git.kernel.org/stable/c/c0099bbf8bc85d30c4cf38220fca3c8d4253fa7f

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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.