Input validation error in Apache Traffic Server - CVE-2023-39456

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Main Vulnerability Database Vulnerabilities #VU82989

Input validation error in Apache Traffic Server - CVE-2023-39456

Published: November 10, 2023


Vulnerability identifier: #VU82989
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-2023-39456
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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 when handling HTTP/2 frames. A remote attacker can send specially crafted HTTP requests to the application and perform a denial of service (DoS) attack.


Affected software

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

How to mitigate CVE-2023-39456

Install updates from vendor's website.

Apache Traffic Server - update to 9.2.3
trafficserver (Debian package) - addressed in versions 8.1.9+ds-1~deb11u1, 9.2.3+ds-1+deb12u1
trafficserver - update to 9.1.4-3
trafficserver-debuginfo - update to 9.1.4-3
trafficserver-debugsource - update to 9.1.4-3
trafficserver-devel - update to 9.1.4-3
trafficserver-perl - update to 9.1.4-3
trafficserver - addressed in versions 9.2.3-1.el7, 9.2.3-1.el8, 9.2.3-1.el9, 9.2.3-1.fc37, 9.2.3-1.fc38, 9.2.3-1.fc39

External References

Related Security Bulletins