#VU91604 Buffer overflow in Linux kernel - CVE-2024-26884

Vulnerability identifier: #VU91604

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-2024-26884

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 a boundary error within the htab_map_alloc() function in kernel/bpf/hashtab.c on 32-bit platforms. A local user can trigger memory corruption and 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
http://git.kernel.org/stable/c/33ec04cadb77605b71d9298311919303d390c4d5
http://git.kernel.org/stable/c/92c81fbb3ed2e0dfc33a4183a67135e1ab566ace
http://git.kernel.org/stable/c/64f00b4df0597590b199b62a37a165473bf658a6
http://git.kernel.org/stable/c/3b08cfc65f07b1132c1979d73f014ae6e04de55d
http://git.kernel.org/stable/c/a83fdaeaea3677b83a53f72ace2d73a19bcd6d93
http://git.kernel.org/stable/c/8435f0961bf3dc65e204094349bd9aeaac1f8868
http://git.kernel.org/stable/c/d817f0d34d927f2deb17dadbfe212c9a6a32ac3e
http://git.kernel.org/stable/c/a6fa75b5096c0f9826a4fabe22d907b0a5bb1016
http://git.kernel.org/stable/c/6787d916c2cf9850c97a0a3f73e08c43e7d973b1

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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.