#VU93399 Buffer overflow in Linux kernel - CVE-2022-48659

Vulnerability identifier: #VU93399

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-2022-48659

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 create_unique_id() and sysfs_slab_add() functions in mm/slub.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/e9219fa63c5c25804af82c7aa54d1ec770ebe457
https://git.kernel.org/stable/c/a1d83a19cec3bfeb2b3547a1f7631e432a766d1c
https://git.kernel.org/stable/c/e996821717c5cf8aa1e1abdb6b3d900a231e3755
https://git.kernel.org/stable/c/016b150992eebc32c4a18f783cf2bb6e2545a3d9
https://git.kernel.org/stable/c/379ac7905ff3f0a6a4e507d3e9f710ec4fab9124
https://git.kernel.org/stable/c/2d6e55e0c03804e1e227b80a5746e086d6c6696c
https://git.kernel.org/stable/c/02bcd951aa3c2cea95fb241c20802e9501940296
https://git.kernel.org/stable/c/7e9c323c52b379d261a72dc7bd38120a761a93cd

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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.