Denial of service in Apache Tomcat - CVE-2016-6817

 

Denial of service in Apache Tomcat - CVE-2016-6817

Published: November 22, 2016


Vulnerability identifier: #VU1185
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2016-6817
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Apache Foundation
Affected software:
Apache Tomcat

Detailed vulnerability description

The vulnerability allows a remote attacker to perform a DoS attack.

The vulnerability exists due to boundary error when parsing HTTP/2 headers. A remote attacker can send a specially crafted HTTP/2 header longer than available buffer and trigger infinite loop.

Successful exploitation of the vulnerability may result in denial of service.


How to mitigate CVE-2016-6817

Update to version 9.0.0.M13.

Sources