Resource exhaustion - CVE-2016-8734
Published: October 16, 2017 / Updated: August 4, 2020
Vulnerability identifier: #VU33570
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2016-8734
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor:
Affected software:
Detailed vulnerability description
The vulnerability allows a remote authenticated user to perform a denial of service (DoS) attack.
Apache Subversion's mod_dontdothat module and HTTP clients 1.4.0 through 1.8.16, and 1.9.0 through 1.9.4 are vulnerable to a denial-of-service attack caused by exponential XML entity expansion. The attack can cause the targeted process to consume an excessive amount of CPU resources or memory.
How to mitigate CVE-2016-8734
Install update from vendor's website.
Sources
- http://www.debian.org/security/2017/dsa-3932
- http://www.securityfocus.com/bid/94588
- http://www.securitytracker.com/id/1037361
- https://lists.apache.org/thread.html/7798f5cda1b2a3c70db4be77694b12dec8fcc1a441b00009d44f0e09@%3Cannounce.apache.org%3E
- https://subversion.apache.org/security/CVE-2016-8734-advisory.txt