#VU102921 NULL pointer dereference in Linux kernel - CVE-2024-57882

Vulnerability identifier: #VU102921

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-57882

CWE-ID: CWE-476

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 perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the mptcp_established_options_add_addr() function in net/mptcp/options.c. A local user can perform a denial of service (DoS) attack.

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/09ba95321a269019b5aa8e0c3bc80cf86d91fd18
https://git.kernel.org/stable/c/53fe947f67c93a5334aed3a7259fcc8a204f8bb6
https://git.kernel.org/stable/c/cbb26f7d8451fe56ccac802c6db48d16240feebd
https://git.kernel.org/stable/c/fb08e6b0ba284e3dcdc9378de26dcb51d90710f5

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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.