CVE-2013-4558 Denial of service in n/a
Remote attackers can cause a denial of service via a non-canonical URL in Subversion's mod_dav_svn module when assertions and SVNAutoversioning are enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-4558?
CVE-2013-4558 is a low-severity denial of service vulnerability in n/a, published on 7 Dec 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The get_parent_resource function in repos.c in mod_dav_svn Apache HTTPD server module in Subversion 1.7.11 through 1.7.13 and 1.8.1 through 1.8.4, when built with assertions enabled and SVNAutoversioning is enabled, allows remote attackers to cause a denial of service (assertion failure and Apache process abort) via a non-canonical URL in a request, as demonstrated using a trailing /.
Weakness: CWE-20
Which versions are affected by CVE-2013-4558?
It affects 2 products.
Products include Apache Mod Dav Svn, Apache Subversion.
How do I fix CVE-2013-4558?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2013-4558 being exploited?
There is no known exploitation of CVE-2013-4558 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2013-4558, GHSA-6c6v-jhrm-ff4w.