CVE-2016-8734
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account. High risk of service disruption.
- Exploit odds
- 6.4% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 6.4% in the next 30 days (EPSS).
- Severity: 6.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 6.4% · EPSS, next 30 days
- Weakness
- CWE-400 · Uncontrolled resource consumption
- Record status
- Modified
Affected
- Apache Subversion 1.4.0
- Apache Subversion 1.4.1
- Apache Subversion 1.4.2
- Apache Subversion 1.4.3
- Apache Subversion 1.4.4
- Apache Subversion 1.4.5
- Apache Subversion 1.4.6
- Apache Subversion 1.5.0
Attack profile CVSS 3.0 · 6.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2016-8734.md and follow it. Check whether this project is affected by CVE-2016-8734. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://subversion.apache.org/security/CVE-2016-8734-advisory.txt
- https://subversion.apache.org/security/CVE-2016-8734-advisory.txt
References
- 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%40%3Cannounce.apache.org%3E
- https://subversion.apache.org/security/CVE-2016-8734-advisory.txt
- https://www.oracle.com/security-alerts/cpuoct2020.html
- 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%40%3Cannounce.apache.org%3E
- https://subversion.apache.org/security/CVE-2016-8734-advisory.txt
- https://www.oracle.com/security-alerts/cpuoct2020.html