[USN-1226-1] Samba vulnerabilities

2011-10-16T00:00:00
ID SECURITYVULNS:DOC:27157
Type securityvulns
Reporter Securityvulns
Modified 2011-10-16T00:00:00

Description

========================================================================== Ubuntu Security Notice USN-1226-1 October 04, 2011

samba vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 10.04 LTS
  • Ubuntu 8.04 LTS

Summary:

An attacker could trick Samba into corrupting the system mtab file.

Software Description: - samba: SMB/CIFS file, print, and login server for Unix

Details:

Dan Rosenberg discovered that Samba incorrectly handled changes to the mtab file. A local attacker could use this issue to corrupt the mtab file, possibly leading to a denial of service. (CVE-2011-1678)

Jan Lieskovsky discovered that Samba incorrectly filtered certain strings being added to the mtab file. A local attacker could use this issue to corrupt the mtab file, possibly leading to a denial of service. This issue only affected Ubuntu 10.04 LTS. (CVE-2011-2724)

Dan Rosenberg discovered that Samba incorrectly handled the mtab lock file. A local attacker could use this issue to create a stale lock file, possibly leading to a denial of service. (CVE-2011-3585)

Update instructions:

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

Ubuntu 10.04 LTS: smbfs 2:3.4.7~dfsg-1ubuntu3.8

Ubuntu 8.04 LTS: smbfs 3.0.28a-1ubuntu4.16

In general, a standard system update will make all the necessary changes.

References: http://www.ubuntu.com/usn/usn-1226-1 CVE-2011-1678, CVE-2011-2724, CVE-2011-3585

Package Information: https://launchpad.net/ubuntu/+source/samba/2:3.4.7~dfsg-1ubuntu3.8 https://launchpad.net/ubuntu/+source/samba/3.0.28a-1ubuntu4.16