USN-617-1: Samba vulnerabilities

Releases

• Ubuntu 8.04
• Ubuntu 7.10
• Ubuntu 7.04
• Ubuntu 6.06

Packages

• samba -

Details

Samba developers discovered that nmbd could be made to overrun
a buffer during the processing of GETDC logon server requests.
When samba is configured as a Primary or Backup Domain Controller,
a remote attacker could send malicious logon requests and possibly
cause a denial of service. (CVE-2007-4572)

Alin Rad Pop of Secunia Research discovered that Samba did not
properly perform bounds checking when parsing SMB replies. A remote
attacker could send crafted SMB packets and execute arbitrary code.
(CVE-2008-1105)

Update instructions

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

Ubuntu 8.04

• libsmbclient - 3.0.28a-1ubuntu4.2
• samba - 3.0.28a-1ubuntu4.2

Ubuntu 7.10

• libsmbclient - 3.0.26a-1ubuntu2.4
• samba - 3.0.26a-1ubuntu2.4

Ubuntu 7.04

• libsmbclient - 3.0.24-2ubuntu1.6
• samba - 3.0.24-2ubuntu1.6

Ubuntu 6.06

• libsmbclient - 3.0.22-1ubuntu3.7
• samba - 3.0.22-1ubuntu3.7

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

References

• CVE-2008-1105
• CVE-2007-4572

Related notices

• USN-617-2: samba, libsmbclient
• USN-544-2: samba
• USN-544-1: samba