#VU99195 Input validation error in Linux kernel - CVE-2022-48994

Vulnerability identifier: #VU99195

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-2022-48994

CWE-ID: CWE-20

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 improper input validation within the EXPORT_SYMBOL() and snd_seq_expand_var_event() functions in sound/core/seq/seq_memory.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/b38486e82ecb9f3046e0184205f6b61408fc40c9
https://git.kernel.org/stable/c/e385360705a0b346bdb57ce938249175d0613b8a
https://git.kernel.org/stable/c/2f46e95bf344abc4e74f8158901d32a869e0adb6
https://git.kernel.org/stable/c/63badfed200219ca656968725f1a43df293ac936
https://git.kernel.org/stable/c/15c42ab8d43acb73e2eba361ad05822c0af0ecfa
https://git.kernel.org/stable/c/fccd454129f6a0739651f7f58307cdb631fd6e89
https://git.kernel.org/stable/c/13ee8fb5410b740c8dd2867d3557c7662f7dda2d
https://git.kernel.org/stable/c/05530ef7cf7c7d700f6753f058999b1b5099a026

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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.