#VU91209 Buffer overflow in Linux kernel - CVE-2023-52494

Vulnerability identifier: #VU91209

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-52494

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 escalate privileges on the system.

The vulnerability exists due to memory corruption within the mhi_del_ring_element() function in drivers/bus/mhi/host/main.c. A local user can escalate privileges on the system.

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/94991728c84f8df54fd9eec9b85855ef9057ea08
https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551
https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010
https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b
https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f

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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.