USN-617-1: Samba vulnerabilities
Ubuntu Security Notice USN-617-1
17th June, 2008
samba vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 8.04 LTS
- Ubuntu 7.10
- Ubuntu 7.04
- Ubuntu 6.06 LTS
Software description
- 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 version:
- Ubuntu 8.04 LTS:
- 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 LTS:
- libsmbclient 3.0.22-1ubuntu3.7
- samba 3.0.22-1ubuntu3.7
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system upgrade is sufficient to effect the
necessary changes.