Inconsistent interpretation of HTTP requests in Apache Traffic Server - CVE-2019-17565

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Main Vulnerability Database Vulnerabilities #VU26349

Inconsistent interpretation of HTTP requests in Apache Traffic Server - CVE-2019-17565

Published: March 24, 2020


Vulnerability identifier: #VU26349
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-17565
CWE-ID: CWE-444
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to improper input validation in HTTP headers and chunked encoding. A remote attacker can send a specially crafted HTTP request and perform HTTP request smuggling attack.


Affected software

Apache Traffic Server
trafficserver (Debian package)

How to mitigate CVE-2019-17565

Install updates from vendor's website.

Apache Traffic Server - addressed in versions 7.1.9, 8.0.6
trafficserver (Debian package) - update to 8.0.2+ds-1+deb10u2

External References

Related Security Bulletins