USN-696-1: Avahi vulnerabilities

Releases

• Ubuntu 8.10
• Ubuntu 8.04
• Ubuntu 7.10
• Ubuntu 6.06

Packages

• avahi -

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)

Update instructions

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

Ubuntu 8.10

• avahi-daemon - 0.6.23-2ubuntu2.1

Ubuntu 8.04

• avahi-daemon - 0.6.22-2ubuntu4.1

Ubuntu 7.10

• avahi-daemon - 0.6.20-2ubuntu3.4

Ubuntu 6.06

• avahi-daemon - 0.6.10-0ubuntu3.5

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

References

• CVE-2007-3372
• CVE-2008-5081