Inconsistent interpretation of HTTP requests in Apache Traffic Server - CVE-2022-31779

Vulnerability identifier: #VU66509

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-2022-31779

CWE-ID: CWE-444

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

The vulnerability exists due to improper validation of HTTP/2 headers. A remote attacker can send a specially crafted HTTP/2 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-debugsource
trafficserver-devel
trafficserver-debuginfo
trafficserver-perl

Install update from vendor's website.

Apache Traffic Server - addressed in versions 8.1.5, 9.1.3
trafficserver (Debian package) - update to 8.1.5+ds-1~deb11u1
trafficserver - update to 9.1.3-1
trafficserver-debugsource - update to 9.1.3-1
trafficserver-devel - update to 9.1.3-1
trafficserver-debuginfo - update to 9.1.3-1
trafficserver-perl - update to 9.1.3-1
trafficserver - addressed in versions 9.1.3-1.el7, 9.1.3-1.el8, 9.1.3-1.el9, 9.1.3-1.fc35, 9.1.3-1.fc36

• https://lists.apache.org/thread/rc64lwbdgrkv674koc3zl1sljr9vwg21
• https://www.debian.org/security/2022/dsa-5206

• Multiple vulnerabilities in Apache Traffic Server
• Debian update for trafficserver
• openEuler 20.03 LTS SP1 update for trafficserver
• openEuler 20.03 LTS SP3 update for trafficserver
• Fedora 36 update for trafficserver
• Fedora 35 update for trafficserver
• Fedora EPEL 7 update for trafficserver
• Fedora EPEL 8 update for trafficserver
• Fedora EPEL 9 update for trafficserver