Bug 667407 - (CVE-2010-4539) CVE-2010-4539 Subversion (mod_dav_svn): DoS (crash) by processing certain requests to display all available repositories to a web browser
CVE-2010-4539 Subversion (mod_dav_svn): DoS (crash) by processing certain req...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
public=20101126,reported=20110102,sou...
: Security
Depends On: 667786 672676 672677 672678 672679 812250 893081
Blocks:
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Reported: 2011-01-05 09:40 EST by Jan Lieskovsky
Modified: 2015-07-31 02:35 EDT (History)
5 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2015-07-29 09:35:48 EDT
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RHEL 7.3 requirements from Atomic Host:


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Description Jan Lieskovsky 2011-01-05 09:40:18 EST
A NULL pointer dereference flaw was found in the way mod_dav_svn,
Apache httpd module for Subversion server, processed certain
requests to display collection of Subversion repositories,
available on particular host, when listing of repositories
(SVNListParentPath directive) was enabled. A remote user could
use this flaw to cause denial of service (particular httpd thread
crash).

References:
[1] http://svn.apache.org/repos/asf/subversion/tags/1.6.15/CHANGES

Upstream changeset:
[2] http://svn.apache.org/viewvc?view=revision&revision=1033166

Public PoC:
[3] http://svn.haxx.se/users/archive-2010-11/0084.shtml

Flaw exploitation note:
-----------------------
This flaw to be successfully exploited requires the "SVNListParentPath"
directive / listing of repositories to be enabled. This feature is
turned off by default in versions of subversion package, as shipped
with Red Hat Enterprise Linux 5 and 6, which prevents occurrence /
exploitation of this flaw.
Comment 1 Jan Lieskovsky 2011-01-05 09:46:53 EST
This issue did NOT affect the version of the subversion package,
as shipped with Red Hat Enterprise Linux 4 as it did not include
the support for repositories listing (SVNListParentPath directive) yet.

This issue affects the versions of the subversion package, as shipped
with Red Hat Enterprise Linux 5 and 6.

--

This issue affects the version of the subversion package, as shipped
with Fedora release of 13.

The updated / patched version of subversion package has been already
pushed to Fedora-14 -testing repository. Once it undergoes the required
testing process, it will be pushed to the -stable repository.
Comment 8 Jan Lieskovsky 2011-01-05 11:43:09 EST
The CVE identifier of CVE-2010-4539 has been assigned to this issue:
http://www.openwall.com/lists/oss-security/2011/01/05/4
Comment 9 Jan Lieskovsky 2011-01-06 13:55:56 EST
Created subversion tracking bugs for this issue

Affects: fedora-13 [bug 667786]
Comment 11 Josh Bressers 2011-01-25 15:19:05 EST
Created subversion tracking bugs for this issue

Affects: fedora-13 [bug 667786]
Comment 12 errata-xmlrpc 2011-02-15 14:02:32 EST
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2011:0257 https://rhn.redhat.com/errata/RHSA-2011-0257.html
Comment 13 errata-xmlrpc 2011-02-15 14:18:02 EST
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:0258 https://rhn.redhat.com/errata/RHSA-2011-0258.html

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