#VU85170 State Issues in OpenSSL - CVE-2023-6129

Vulnerability identifier: #VU85170

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-6129

CWE-ID: CWE-371

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
OpenSSL
Server applications / Encryption software

Vendor: OpenSSL Software Foundation

Description

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

The vulnerability exists due to an error in POLY1305 MAC (message authentication code) implementation on PowerPC CPU based platforms if the CPU provides vector instructions. A remote attacker can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

OpenSSL: 3.0.0 - 3.0.12, 3.1.0 - 3.1.4, 3.2.0

---

External links
https://www.openssl.org/news/secadv/20240109.txt

---

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.