#VU90070 Use-after-free in Linux kernel - CVE-2023-52769

Vulnerability identifier: #VU90070

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-2023-52769

CWE-ID: CWE-416

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 a use-after-free error within the ath12k_htt_mlo_offset_event_handler() function in drivers/net/wireless/ath/ath12k/dp_rx.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/d908ca431e20b0e4bfc5d911d1744910ed779bdb
https://git.kernel.org/stable/c/afd3425bd69610f318403084fe491e24a1357fb9
https://git.kernel.org/stable/c/6afc57ea315e0f660b1f870a681737bb7b71faef

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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.