#VU104526 Out-of-bounds read in Linux kernel - CVE-2022-49252

Vulnerability identifier: #VU104526

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-2022-49252

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 rx_macro_mux_get(), rx_macro_mux_put(), rx_macro_get_hph_pwr_mode() and rx_macro_put_hph_pwr_mode() functions in sound/soc/codecs/lpass-rx-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/7e3629e256d1cabf801d00050550ade4d036cafe
https://git.kernel.org/stable/c/aed43e92e4b9187029903880d5db608f7fa1c53c
https://git.kernel.org/stable/c/bcfe5f76cc4051ea3f9eb5d2c8ea621641f290a5
https://git.kernel.org/stable/c/eb15c6ea692fd88d70698d874d9a0d667fb4cde9

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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.