Improper locking in Linux kernel tls

1) Improper locking

EUVDB-ID: #VU91516

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-2024-35908

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

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

The vulnerability exists due to improper locking within the tls_sw_recvmsg() function in net/tls/tls_sw.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/30fabe50a7ace3e9d57cf7f9288f33ea408491c8
https://git.kernel.org/stable/c/f1b7f14130d782433bc98c1e1e41ce6b4d4c3096
https://git.kernel.org/stable/c/b565d294e3d5aa809566a4d819835da11997d8b3
https://git.kernel.org/stable/c/417e91e856099e9b8a42a2520e2255e6afe024be

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.