USN-556-1: Samba vulnerability

Releases

• Ubuntu 7.10
• Ubuntu 7.04
• Ubuntu 6.10
• Ubuntu 6.06

Packages

• samba -

Details

Alin Rad Pop discovered that Samba did not correctly check the size
of reply packets to mailslot requests. If a server was configured
with domain logon enabled, an unauthenticated remote attacker could send
a specially crafted domain logon packet and execute arbitrary code or
crash the Samba service. By default, domain logon is disabled in Ubuntu.

Update instructions

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

Ubuntu 7.10

• libsmbclient - 3.0.26a-1ubuntu2.3
• samba - 3.0.26a-1ubuntu2.3

Ubuntu 7.04

• libsmbclient - 3.0.24-2ubuntu1.5
• samba - 3.0.24-2ubuntu1.5

Ubuntu 6.10

• libsmbclient - 3.0.22-1ubuntu4.5
• samba - 3.0.22-1ubuntu4.5

Ubuntu 6.06

• libsmbclient - 3.0.22-1ubuntu3.6
• samba - 3.0.22-1ubuntu3.6

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

References

• CVE-2007-6015