Input validation error in Apache Traffic Server - CVE-2021-44040

Vulnerability identifier: #VU63858

CSH Severity: Medium

CVSS v4: 8.7 [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]

CVE-ID: CVE-2021-44040

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

The vulnerability exists due to insufficient validation when processing requsts. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Apache Traffic Server
trafficserver (Debian package)
trafficserver
trafficserver-debuginfo
trafficserver-debugsource
trafficserver-perl
trafficserver-devel
openEuler

Install updates from vendor's website.

Apache Traffic Server - addressed in versions 8.1.4, 9.1.2
trafficserver (Debian package) - addressed in versions 8.0.2+ds-1+deb10u6, 8.1.1+ds-1.1+deb11u1
trafficserver - update to 9.1.2-1
trafficserver-debuginfo - update to 9.1.2-1
trafficserver-debugsource - update to 9.1.2-1
trafficserver-perl - update to 9.1.2-1
trafficserver-devel - update to 9.1.2-1

• https://lists.apache.org/thread/zblwzcfs9ryhwjr89wz4osw55pxm6dx6

• Multiple vulnerabilities in Apache Traffic Server
• Debian update for trafficserver
• openEuler update for trafficserver