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Red Hat: RHSA-2011:0258-01 Moderate: Subversion Access Control Issue

red hat
Calendar Grey February 15, 2011
Scroller Redhat
A mild patch for security concerns in Subversion deployed on Red Hat Enterprise Linux tackling various vulnerabilities.
Updated subversion packages that fix three security issues are now available for Red Hat Enterprise Linux 6

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at

Summary

Subversion (SVN) is a concurrent version control system which enables one or more users to collaborate in developing and maintaining a hierarchy of files and directories while keeping a history of all changes. The mod_dav_svn module is used with the Apache HTTP Server to allow access to Subversion repositories via HTTP.
An access restriction bypass flaw was found in the mod_dav_svn module. If the SVNPathAuthz directive was set to "short_circuit", certain access rules were not enforced, possibly allowing sensitive repository data to be leaked to remote users. Note that SVNPathAuthz is set to "On" by default. (CVE-2010-3315)
A server-side memory leak was found in the Subversion server. If a malicious, remote user performed "svn blame" or "svn log" operations on certain repository files, it could cause the Subversion server to consume a large amount of system memory. (CVE-2010-4644)
A NULL pointer dereference flaw was found in the way the mod_dav_svn module processed certain requests. If a malicious, remote user issued a certain type of request to display a collection of Subversion repositories on a host that has the SVNListParentPath directive enabled, it could cause the httpd process serving the request to crash. Note that SVNListParentPath is not enabled by default. (CVE-2010-4539)
All Subversion users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the Subversion server must be restarted for the update to take effect: restart httpd if you are using mod_dav_svn, or restart svnserve if it is used.

Topics%20covered

Topics Covered

security advisory moderate Red Hat subversion access control DoS system memory

References

https://access.redhat.com/security/cve/CVE-2010-3315 https://access.redhat.com/security/cve/CVE-2010-4539 https://access.redhat.com/security/cve/CVE-2010-4644 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
i386: mod_dav_svn-1.6.11-2.el6_0.2.i686.rpm subversion-1.6.11-2.el6_0.2.i686.rpm subversion-debuginfo-1.6.11-2.el6_0.2.i686.rpm subversion-devel-1.6.11-2.el6_0.2.i686.rpm subversion-gnome-1.6.11-2.el6_0.2.i686.rpm subversion-javahl-1.6.11-2.el6_0.2.i686.rpm subversion-kde-1.6.11-2.el6_0.2.i686.rpm subversion-perl-1.6.11-2.el6_0.2.i686.rpm subversion-ruby-1.6.11-2.el6_0.2.i686.rpm
noarch: subversion-svn2cl-1.6.11-2.el6_0.2.noarch.rpm
x86_64: mod_dav_svn-1.6.11-2.el6_0.2.x86_64.rpm subversion-1.6.11-2.el6_0.2.i686.rpm subversion-1.6.11-2.el6_0.2.x86_64.rpm subversion-debuginfo-1.6.11-2.el6_0.2.i686.rpm subversion-debuginfo-1.6.11-2.el6_0.2.x86_64.rpm subversion-devel-1.6.11-2.el6_0.2.i686.rpm subversion-devel-1.6.11-2.el6_0.2.x86_64.rpm subversion-gnome-1.6.11-2.el6_0.2.i686.rpm subversion-gnome-1.6.11-2.el6_0.2.x86_64.rpm subversion-javahl-1.6.11-2.el6_0.2.i686.rpm subversion-javahl-1.6.11-2.el6_0.2.x86_64.rpm subversion-kde-1.6.11-2.el6_0.2.i686.rpm subversion-kde-1.6.11-2.el6_0.2.x86_64.rpm subversion-perl-1.6.11-2.el6_0.2.i686.rpm subversion-perl-1.6.11-2.el6_0.2.x86_64.rpm subversion-ruby-1.6.11-2.el6_0.2.i686.rpm subversion-ruby-1.6.11-2.el6_0.2.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):


Read the Full Advisory


Advisory ID: RHSA-2011:0258-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:0258.html
Issue date: 2011-02-15

Topic

Updated subversion packages that fix three security issues are nowavailable for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. Common Vulnerability Scoring System (CVSS) base scores,which give detailed severity ratings, are available for each vulnerabilityfrom the CVE links in the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat subversion access control DoS system memory

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, noarch, x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - noarch, x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, noarch, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, noarch, x86_64

Bugs Fixed

640317 - CVE-2010-3315 Subversion: Access restriction bypass by checkout of the root of the repository

667407 - CVE-2010-4539 Subversion (mod_dav_svn): DoS (crash) by processing certain requests to display all available repositories to a web browser

667763 - CVE-2010-4644 Subversion: DoS (memory consumption) by processing blame or log -g requests on certain files

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