Main Vulnerability Database Vulnerabilities #VU58652

Improper Certificate Validation in Apache Traffic Server - CVE-2021-38161

Published: December 8, 2021

Vulnerability identifier: #VU58652

CSH Severity: Medium

CVSS v4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-38161

CWE-ID: CWE-295

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to improper verification of TLS origin. A remote attacker can intercept and decrypt traffic from clients.

Apache Traffic Server
trafficserver (Debian package)

Install updates from vendor's website.

Apache Traffic Server - update to 8.1.3
trafficserver (Debian package) - addressed in versions 8.0.2+ds-1+deb10u6, 8.1.1+ds-1.1+deb11u1