#VU94303 Buffer overflow in Linux kernel - CVE-2024-40996

Vulnerability identifier: #VU94303

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-2024-40996

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 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

---

External links
http://git.kernel.org/stable/c/dacc15e9cb248d19e5fc63c54bef0b9b55007761
http://git.kernel.org/stable/c/7f9644782c559635bd676c12c59389a34ed7c866
http://git.kernel.org/stable/c/5e90258303a358e88737afb5048bee9113beea3a
http://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.