Remote denial of service in Linux kernel TLS implementation

1) Error handling

EUVDB-ID: #VU89001

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-26584

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an error when handling backlogging of crypto requests in net/tls/tls_sw.c. A remote attacker can send specially crafted traffic to the system and perform a denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions

External links

http://git.kernel.org/stable/c/8590541473188741055d27b955db0777569438e3
http://git.kernel.org/stable/c/13eca403876bbea3716e82cdfe6f1e6febb38754
http://git.kernel.org/stable/c/ab6397f072e5097f267abf5cb08a8004e6b17694
http://git.kernel.org/stable/c/cd1bbca03f3c1d845ce274c0d0a66de8e5929f72

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.