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Ubuntu: Security update for devscripts

Raphael Geissert discovered that the debdiff.pl tool incorrectly handled shell metacharacters. If a user or automated system were tricked into processing a specially crafted filename, a remote attacher could possibly execute arbitrary code. Raphael Geissert discovered that the dscverify tool incorrectly escaped arguments to external commands. If a user or automated system were tricked into processing specially crafted files, a remote attacher could possibly execute arbitrary code. Raphael Geissert discovered that the dget tool incorrectly performed input validation. If a user or automated system were tricked into processing specially crafted files, a remote attacher could delete arbitrary files.

Raphael Geissert discovered that the dget tool incorrectly escaped arguments to external commands. If a user or automated system were tricked into processing specially crafted files, a remote attacher could possibly execute arbitrary code. Jim Meyering discovered that the annotate-output tool incorrectly handled temporary files. A local attacker could use this flaw to alter files being processed by the annotate-output tool. On Ubuntu 11.04 and later, this issue was mitigated by the Yama kernel symlink restrictions.

Updated packages are available from security.ubuntu.com.

==========================================================================
Ubuntu Security Notice USN-1593-1
October 02, 2012

devscripts vulnerabilities
==========================================================================

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

- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in devscripts.

Software Description:
- devscripts: scripts to make the life of a Debian Package maintainer easier

Details:

Raphael Geissert discovered that the debdiff.pl tool incorrectly handled
shell metacharacters. If a user or automated system were tricked into
processing a specially crafted filename, a remote attacher could possibly
execute arbitrary code. (CVE-2012-0212)

Raphael Geissert discovered that the dscverify tool incorrectly escaped
arguments to external commands. If a user or automated system were tricked
into processing specially crafted files, a remote attacher could possibly
execute arbitrary code. (CVE-2012-2240)

Raphael Geissert discovered that the dget tool incorrectly performed input
validation. If a user or automated system were tricked into processing
specially crafted files, a remote attacher could delete arbitrary files.
(CVE-2012-2241)

Raphael Geissert discovered that the dget tool incorrectly escaped
arguments to external commands. If a user or automated system were tricked
into processing specially crafted files, a remote attacher could possibly
execute arbitrary code. This issue only affected Ubuntu 10.04 LTS and
Ubuntu 11.04. (CVE-2012-2242)

Jim Meyering discovered that the annotate-output tool incorrectly handled
temporary files. A local attacker could use this flaw to alter files being
processed by the annotate-output tool. On Ubuntu 11.04 and later, this
issue was mitigated by the Yama kernel symlink restrictions.
(CVE-2012-3500)

Update instructions:

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

Ubuntu 12.04 LTS:
 devscripts                      2.11.6ubuntu1.4

Ubuntu 11.10:
 devscripts                      2.11.1ubuntu3.2

Ubuntu 11.04:
 devscripts                      2.10.69ubuntu2.2

Ubuntu 10.04 LTS:
 devscripts                      2.10.61ubuntu5.3

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

References:
 http://www.ubuntu.com/usn/usn-1593-1
 CVE-2012-0212, CVE-2012-2240, CVE-2012-2241, CVE-2012-2242,
 CVE-2012-3500

Package Information:
 https://launchpad.net/ubuntu/+source/devscripts/2.11.6ubuntu1.4
 https://launchpad.net/ubuntu/+source/devscripts/2.11.1ubuntu3.2
 https://launchpad.net/ubuntu/+source/devscripts/2.10.69ubuntu2.2
 https://launchpad.net/ubuntu/+source/devscripts/2.10.61ubuntu5.3
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