#VU90187 Use-after-free in Linux kernel - CVE-2024-26951

Vulnerability identifier: #VU90187

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-2024-26951

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 wg_get_device_dump() function in drivers/net/wireguard/netlink.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/f52be46e3e6ecefc2539119784324f0cbc09620a
https://git.kernel.org/stable/c/710a177f347282eea162aec8712beb1f42d5ad87
https://git.kernel.org/stable/c/b7cea3a9af0853fdbb1b16633a458f991dde6aac
https://git.kernel.org/stable/c/13d107794304306164481d31ce33f8fdb25a9c04
https://git.kernel.org/stable/c/7bedfe4cfa38771840a355970e4437cd52d4046b
https://git.kernel.org/stable/c/302b2dfc013baca3dea7ceda383930d9297d231d
https://git.kernel.org/stable/c/55b6c738673871c9b0edae05d0c97995c1ff08c4

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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.