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USN-1144-1: Subversion vulnerabilities

6 June 2011

An attacker could send crafted input to the Subversion mod_dav_svn module for Apache and cause it to crash or gain access to restricted files.

Releases

Packages

Details

Joe Schaefer discovered that the Subversion mod_dav_svn module for Apache
did not properly handle certain baselined WebDAV resource requests. A
remote attacker could use this flaw to cause the service to crash, leading
to a denial of service. (CVE-2011-1752)

Ivan Zhakov discovered that the Subversion mod_dav_svn module for Apache
did not properly handle certain requests. A remote attacker could use this
flaw to cause the service to consume all available resources, leading to a
denial of service. (CVE-2011-1783)

Kamesh Jayachandran discovered that the Subversion mod_dav_svn module for
Apache did not properly handle access control in certain situations. A
remote user could use this flaw to gain access to files that would
otherwise be unreadable. (CVE-2011-1921)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 11.04
Ubuntu 10.10
Ubuntu 10.04

After a standard system update you need to restart any applications that
use Subversion, such as Apache when using mod_dav_svn, to make all the
necessary changes.