Issued:
2012-04-13
Updated:
2012-04-13

RHSA-2012:0478 - Critical: samba security update

Synopsis

Critical: samba security update

Type/Severity

Security Advisory Critical

Topic

Updated samba packages that fix one security issue are now available for Red Hat Enterprise Linux 4 Extended Life Cycle Support.

The Red Hat Security Response Team has rated this update as having critical security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Description

Samba is an open-source implementation of the Server Message Block (SMB) or Common Internet File System (CIFS) protocol, which allows PC-compatible machines to share files, printers, and other information.

A flaw in the Samba suite's Perl-based DCE/RPC IDL (PIDL) compiler, used to generate code to handle RPC calls, resulted in multiple buffer overflows in Samba. A remote, unauthenticated attacker could send a specially-crafted RPC request that would cause the Samba daemon (smbd) to crash or, possibly, execute arbitrary code with the privileges of the root user. (CVE-2012-1182)

Users of Samba are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. After installing this update, the smb service will be restarted automatically.

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258

Affected Products

ProductVersionArch
Red Hat Enterprise Linux Server - Extended Life Cycle Support4x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support4ia64
Red Hat Enterprise Linux Server - Extended Life Cycle Support4i386

Updated Packages

  • samba-swat-3.0.33-3.36.el4.ia64.rpm
  • samba-client-3.0.33-3.36.el4.x86_64.rpm
  • samba-swat-3.0.33-3.36.el4.x86_64.rpm
  • samba-3.0.33-3.36.el4.src.rpm
  • samba-client-3.0.33-3.36.el4.i386.rpm
  • samba-swat-3.0.33-3.36.el4.i386.rpm
  • samba-client-3.0.33-3.36.el4.ia64.rpm
  • samba-common-3.0.33-3.36.el4.ia64.rpm
  • samba-3.0.33-3.36.el4.ia64.rpm
  • samba-3.0.33-3.36.el4.i386.rpm
  • samba-common-3.0.33-3.36.el4.x86_64.rpm
  • samba-3.0.33-3.36.el4.x86_64.rpm
  • samba-common-3.0.33-3.36.el4.i386.rpm

Fixes

CVEs

References

Additional information