1. Ubuntu Security Notices
  2. USN-696-1

USN-696-1: Avahi vulnerabilities

Publication date

18 December 2008

Overview

Avahi vulnerabilities

Releases

Packages

Details

Emanuele Aina discovered that Avahi did not properly validate its input when
processing data over D-Bus. A local attacker could send an empty TXT message
via D-Bus and cause a denial of service (failed assertion). This issue only
affected Ubuntu 6.06 LTS. (CVE-2007-3372)

Hugo Dias discovered that Avahi did not properly verify its input when
processing mDNS packets. A remote attacker could send a crafted mDNS packet
and cause a denial of service (assertion failure). (CVE-2008-5081)

Emanuele Aina discovered that Avahi did not properly validate its input when
processing data over D-Bus. A local attacker could send an empty TXT message
via D-Bus and cause a denial of service (failed assertion). This issue only
affected Ubuntu 6.06 LTS. (CVE-2007-3372)

Hugo Dias discovered that Avahi did not properly verify its input when
processing mDNS packets. A remote attacker could send a crafted mDNS packet
and cause a denial of service (assertion failure). (CVE-2008-5081)

Update instructions

In general, a standard system upgrade is sufficient to effect the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
8.10 intrepid avahi-daemon –  0.6.23-2ubuntu2.1
8.04 hardy avahi-daemon –  0.6.22-2ubuntu4.1
7.10 gutsy avahi-daemon –  0.6.20-2ubuntu3.4
6.06 dapper avahi-daemon –  0.6.10-0ubuntu3.5

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References

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