7.8 - USN-1893-1

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 13.04 - Ubuntu 12.10 - Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in Subversion.

Software Description: - subversion: Advanced version control system

Details:

Alexander Klink discovered that the Subversion mod_dav_svn module for Apache did not properly handle a large number of properties. A remote authenticated attacker could use this flaw to cause memory consumption, leading to a denial of service. (CVE-2013-1845)

Ben Reser discovered that the Subversion mod_dav_svn module for Apache did not properly handle certain LOCKs. A remote authenticated attacker could use this flaw to cause Subversion to crash, leading to a denial of service. (CVE-2013-1846)

Philip Martin and Ben Reser discovered that the Subversion mod_dav_svn module for Apache did not properly handle certain LOCKs. A remote attacker could use this flaw to cause Subversion to crash, leading to a denial of service. (CVE-2013-1847)

It was discovered that the Subversion mod_dav_svn module for Apache did not properly handle certain PROPFIND requests. A remote attacker could use this flaw to cause Subversion to crash, leading to a denial of service. (CVE-2013-1849)

Greg McMullin, Stefan Fuhrmann, Philip Martin, and Ben Reser discovered that the Subversion mod_dav_svn module for Apache did not properly handle certain log REPORT requests. A remote attacker could use this flaw to cause Subversion to crash, leading to a denial of service. This issue only affected Ubuntu 12.10 and Ubuntu 13.04. (CVE-2013-1884)

Stefan Sperling discovered that Subversion incorrectly handled newline characters in filenames. A remote authenticated attacker could use this flaw to corrupt FSFS repositories. (CVE-2013-1968)

Boris Lytochkin discovered that Subversion incorrectly handled TCP connections that were closed early. A remote attacker could use this flaw to cause Subversion to crash, leading to a denial of service. (CVE-2013-2112)

Update instructions:

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

Ubuntu 13.04:
libapache2-svn 1.7.5-1ubuntu3.1
libsvn1 1.7.5-1ubuntu3.1

Ubuntu 12.10:
libapache2-svn 1.7.5-1ubuntu2.1
libsvn1 1.7.5-1ubuntu2.1

Ubuntu 12.04 LTS:
libapache2-svn 1.6.17dfsg-3ubuntu3.3
libsvn1 1.6.17dfsg-3ubuntu3.3

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1893-1
CVE-2013-1845, CVE-2013-1846, CVE-2013-1847, CVE-2013-1849,
CVE-2013-1884, CVE-2013-1968, CVE-2013-2112

Package Information:
https://launchpad.net/ubuntu/+source/subversion/1.7.5-1ubuntu3.1
https://launchpad.net/ubuntu/+source/subversion/1.7.5-1ubuntu2.1
https://launchpad.net/ubuntu/+source/subversion/1.6.17dfsg-3ubuntu3.3