USN-1593-1: devscripts vulnerabilities

Ubuntu Security Notice USN-1593-1

2nd October, 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 version:

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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2012-0212, CVE-2012-2240, CVE-2012-2241, CVE-2012-2242, CVE-2012-3500