Buffer overflow in Linux kernel core

1) Buffer overflow

EUVDB-ID: #VU94303

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-2024-40996

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory corruption within the DEFINE_PER_CPU() function in net/core/filter.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

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/dacc15e9cb248d19e5fc63c54bef0b9b55007761
https://git.kernel.org/stable/c/7f9644782c559635bd676c12c59389a34ed7c866
https://git.kernel.org/stable/c/5e90258303a358e88737afb5048bee9113beea3a
https://git.kernel.org/stable/c/2bbe3e5a2f4ef69d13be54f1cf895b4658287080

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.