#VU1975 Input validation error in OpenSSL - CVE-2016-2181
Published: December 21, 2016 / Updated: March 6, 2023
Vulnerability identifier: #VU1975
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2016-2181
CWE-ID: CWE-20
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 perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the Anti-Replay feature in the DTLS implementation when using a new epoch number in conjunction with a large sequence number. A remote attacker can perform a denial of service (DoS) attack (false-positive packet drops) via spoofed DTLS records.
Remediation
Install update from vendor's website.