#VU72466 Use-after-free in Linux kernel - CVE-2022-3534

Vulnerability identifier: #VU72466

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-2022-3534

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 btf_dump_name_dups() function in tools/lib/bpf/btf_dump.c. A local user can execute arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://vuldb.com/?id.211032
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=93c660ca40b5d2f7c1b1626e955a8e9fa30e0749

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?