Kod programskog paketa subversion uočene su i ispravljene sigurnosne ranjivosti koje napadačima omogućuju pregled potencijalno osjetljivih podataka i izvođenje napada uskraćivanja usluge (DoS).

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Fedora Update Notification
FEDORA-2011-8352
2011-06-15 17:46:08
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Name        : subversion
Product     : Fedora 15
Version     : 1.6.17
Release     : 1.fc15
URL         : http://subversion.apache.org/
Summary     : A Modern Concurrent Version Control System
Description :
Subversion 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.  Subversion only stores the differences between versions,
instead of every complete file.  Subversion is intended to be a
compelling replacement for CVS.

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Update Information:

This update includes the latest release of Subversion, fixing three security
issues:

An infinite loop flaw was found in the way the mod_dav_svn module processed
certain data sets. If the SVNPathAuthz directive was set to "short_circuit", and
path-based access control for files and directories was enabled, a malicious,
remote user could use this flaw to cause the httpd process serving the request
to consume an excessive amount of system memory. (CVE-2011-1783)

A NULL pointer dereference flaw was found in the way the mod_dav_svn module
processed requests submitted against the URL of a baselined resource. A
malicious, remote user could use this flaw to cause the httpd process serving
the request to crash. (CVE-2011-1752)

An information disclosure flaw was found in the way the mod_dav_svn
module processed certain URLs when path-based access control for files and
directories was enabled. A malicious, remote user could possibly use this flaw
to access certain files in a repository that would otherwise not be accessible
to them. Note: This vulnerability cannot be triggered if the SVNPathAuthz
directive is set to "short_circuit". (CVE-2011-1921)

The Fedora Project would like to thank the Apache Subversion project for
reporting these issues. Upstream acknowledges Joe Schaefer of the Apache
Software Foundation as the original reporter of CVE-2011-1752; Ivan Zhakov of
VisualSVN as the original reporter of CVE-2011-1783; and Kamesh
Jayachandran of CollabNet, Inc. as the original reporter of CVE-2011-1921.

The following bugs are also fixed in this release:

* make 'blame -g' more efficient on with large mergeinfo 
* preserve log message with a non-zero editor exit
* fix FSFS cache performance on 64-bit platforms
* make svn cleanup tolerate obstructed directories
* fix deadlock in multithreaded servers serving FSFS repositories
* detect very occasional corruption and abort commit
* fixed: file externals cause non-inheritable mergeinfo
* fixed: file externals cause mixed-revision working copies
* fixed: write-through proxy could direcly commit to slave
* detect a particular corruption condition in FSFS
* improve error message when clients refer to unkown revisions
* bugfixes and optimizations to the DAV mirroring code
* fixed: locked and deleted file causes tree conflict
* fixed: update touches locked file with svn:keywords property
* fix svnsync handling of directory copyfrom
* fix 'log -g' excessive duplicate output
* fix svnsync copyfrom handling bug with BDB
* server-side validation of svn:mergeinfo syntax during commit 
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ChangeLog:

* Thu Jun  2 2011 Joe Orton <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> - 1.6.17-1
- update to 1.6.17 (#709952)
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References:

  [ 1 ] Bug #709952 - CVE-2011-1752 CVE-2011-1783 CVE-2011-1921 subversion
various flaws [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=709952
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This update can be installed with the "yum" update program.  Use 
su -c 'yum update subversion' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora Project GPG key.  More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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