ASA-2019-00031 – Apache Subversion: Malicious SVN clients can crash mod_dav_svn


Allele Security Alert

ASA-2019-00031

Identifier(s)

ASA-2019-00031, CVE-2018-11803

Title

Malicious SVN clients can crash mod_dav_svn

Vendor(s)

Apache Software Foundation

Product(s)

Apache Subversion

Affected version(s)

Apache Subversion versions 1.10.0 up to and including 1.10.3
Apache Subversion version 1.11.0

Fixed version(s)

Apache Subversion version 1.10.4
Apache Subversion version 1.11.1

Proof of concept

Unknown

Description

Subversion 1.10.0 introduced server-side support for recursive directory listing operations. The implementation in mod_dav_svn failed to validate the root path of the directory listing provided by the client. If the client omits the root path, mod_dav_svn will deference an uninitialized pointer variable and crash the HTTPD worker process handling the request.

Technical details

Unknown

Credits

Ivan Zhakov

Reference(s)

Malicious SVN clients can crash mod_dav_svn.
https://subversion.apache.org/security/CVE-2018-11803-advisory.txt

[CVE-2018-11803] Apache Subversion Denial of Service Vulnerability
https://seclists.org/oss-sec/2019/q1/83

CVE-2018-11803
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-11803

CVE-2018-11803
https://nvd.nist.gov/vuln/detail/CVE-2018-11803

If there is any error in this alert or you wish a comprehensive analysis, let us know.

Last modified: October 2, 2019

We are not responsible for any data loss, device corruption or any other type of issue due to the use of any information mentioned in our security alerts.