Bug 986194 (CVE-2013-4131)

Summary:	CVE-2013-4131 subversion: DoS (assertion failure, crash) in mod_dav_svn when handling certain MOVE, COPY, or DELETE HTTP requests
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	jorton, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	Subversion 1.8.1, Subversion 1.7.11	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-08-02 17:50:11 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	988144, 988145
Bug Blocks:	986200

Description Jan Lieskovsky 2013-07-19 08:12:38 UTC

A denial of service flaw was found in the way mod_dav_svn module of Subversion (SVN), a concurrent version control system, used to process certain MOVE, COPY, or DELETE HTTP requests (requests that originated or targeted against a revision root). A remote attacker, with commit access / privileges could use this flaw to cause denial of service (depending on the Apache httpd web server configuration either child assertion failure or crash [prefork MPM configuration] or failure to handle other requests, originally scheduled to be handled within the same thread [threaded MPM configuration] due to a process termination) by issuing a specially-crafted SVN commit request.

Vulnerable package versions:
* Subversion HTTPD servers 1.7.0 through 1.7.10 (inclusive)
* Subversion HTTPD servers 1.8.0 (including 1.8.0 release candidates).
* svnserve (any version) is not vulnerable.
* Subversion 1.6.x is not vulnerable.

Comment 2 Jan Lieskovsky 2013-07-19 08:16:03 UTC

This issue did NOT affect the versions of the subversion package, as shipped with Red Hat Enterprise Linux 5 and 6.

--

This issue affects the versions of the subversion package, as shipped with Fedora release of 17, 18, and 19.

Comment 4 Jan Lieskovsky 2013-07-19 08:17:57 UTC

Statement:

Not vulnerable. This issue did not affect the versions of subversion, as shipped with Red Hat Enterprise Linux 5 and 6.

Comment 5 Jan Lieskovsky 2013-07-19 08:20:34 UTC

Acknowledgements:

Red Hat would like to thank Ben Reser of Apache Subversion project for reporting this issue. Upstream acknowledges Daniel Shahaf of Apache Infrastructure as the original issue reporter.

Comment 8 Vincent Danen 2013-07-24 20:35:32 UTC

Created subversion tracking bugs for this issue:

Affects: fedora-all [bug 988145]

Comment 9 Jan Lieskovsky 2013-07-25 09:37:24 UTC

External References:

http://subversion.apache.org/security/CVE-2013-4131-advisory.txt

Comment 10 Fedora Update System 2013-08-02 03:30:56 UTC

subversion-1.7.11-1.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 11 Fedora Update System 2013-08-15 02:33:02 UTC

subversion-1.7.11-1.fc18.1 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.