Inconsistent interpretation of HTTP requests in Apache Traffic Server - CVE-2024-53868

Vulnerability identifier: #VU107429

CSH Severity: Medium

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-53868

CWE-ID: CWE-444

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform HTTP request smuggling attacks.

The vulnerability exists due to improper validation of HTTP requests when handling chunked messages. A remote attacker can send a specially crafted HTTP request to the server and smuggle arbitrary HTTP headers.

Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.

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

Install updates from vendor's website.

Apache Traffic Server - addressed in versions 9.2.10, 10.0.5
trafficserver (Debian package) - update to 9.2.5+ds-0+deb12u3
trafficserver - update to 9.2.5-5
trafficserver-debuginfo - update to 9.2.5-5
trafficserver-debugsource - update to 9.2.5-5
trafficserver-devel - update to 9.2.5-5
trafficserver-perl - update to 9.2.5-5
trafficserver - addressed in versions 9.2.10-1.el8, 9.2.10-1.el9, 9.2.10-1.fc40, 9.2.10-1.fc41, 10.0.5-1.fc42

• http://www.openwall.com/lists/oss-security/2025/04/02/4
• https://lists.apache.org/thread/rwyx91rsrnmpjbm04footfjjf6m9d1c9

• HTTP request smuggling in Apache Traffic Server
• Fedora EPEL 8 update for trafficserver
• Fedora 41 update for trafficserver
• Fedora 42 update for trafficserver
• Fedora EPEL 9 update for trafficserver
• Fedora 40 update for trafficserver
• openEuler 24.03 LTS SP1 update for trafficserver
• openEuler 24.03 LTS update for trafficserver
• Debian update for trafficserver