#VU104916 Buffer overflow in Linux kernel - CVE-2022-49266

Vulnerability identifier: #VU104916

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-2022-49266

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 blkcg_iolatency_done_bio() function in block/blk-iolatency.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/09737db4c891eba25e6f6383a7c38afd4acc883f
https://git.kernel.org/stable/c/aa1b46dcdc7baaf5fec0be25782ef24b26aa209e
https://git.kernel.org/stable/c/af9452dfdba4bf7359ef7645eee2d243a1df0649
https://git.kernel.org/stable/c/dbd20bb904ad5731aaca8d009367a930d6ada111

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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.