#VU60166 Cryptographic issues in OpenSSL - CVE-2021-4160
Published: January 28, 2022 / Updated: October 2, 2024
Vulnerability identifier: #VU60166
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-4160
CWE-ID: CWE-310
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
OpenSSL
OpenSSL
Software vendor:
OpenSSL Software Foundation
OpenSSL Software Foundation
Description
The vulnerability allows a remote attacker to decrypt TLS traffic.
The vulnerability exists due to BN_mod_exp may produce incorrect results on MIPS. A remote attacker can decrypt TLS traffic. According to vendor, multiple EC algorithms are affected, including some of the TLS 1.3 default curves.
Successful exploitation of the vulnerability requires certain pre-requisites for attack, such as obtaining and reusing private keys.
Remediation
Install updates from vendor's website.