#VU93350 Use-after-free in Linux kernel - CVE-2024-26680

Vulnerability identifier: #VU93350

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-2024-26680

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 aq_ring_free() function in drivers/net/ethernet/aquantia/atlantic/aq_ring.c, within the aq_ptp_ring_alloc() and aq_ptp_ring_free() functions in drivers/net/ethernet/aquantia/atlantic/aq_ptp.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/466ceebe48cbba3f4506f165fca7111f9eb8bb12
https://git.kernel.org/stable/c/004fe5b7f59286a926a45e0cafc7870e9cdddd56
https://git.kernel.org/stable/c/e42e334c645575be5432adee224975d4f536fdb1
https://git.kernel.org/stable/c/2e7d3b67630dfd8f178c41fa2217aa00e79a5887

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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.