devscripts vulnerabilities

2 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 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

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