Issued:
2014-01-06
Updated:
2014-01-06

RHSA-2014:0009 - Important: samba security update

Synopsis

Important: samba security update

Type/Severity

Security Advisory Important

Topic

Updated samba packages that fix two security issues are now available for Red Hat Storage.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links 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 heap-based buffer overflow flaw was found in the DCE-RPC client code in Samba. A specially crafted DCE-RPC packet could cause various Samba programs to crash or, possibly, execute arbitrary code when parsed. A malicious or compromised Active Directory Domain Controller could use this flaw to compromise the winbindd daemon running with root privileges. (CVE-2013-4408)

A flaw was found in the way Samba performed ACL checks on alternate file and directory data streams. An attacker able to access a CIFS share with alternate stream support enabled could access alternate data streams regardless of the underlying file or directory ACL permissions. (CVE-2013-4475)

Red Hat would like to thank the Samba project for reporting CVE-2013-4408. Upstream acknowledges Stefan Metzmacher and Michael Adam of SerNet as the original reporters of this issue.

All users of Red Hat Storage are advised to upgrade to these updated packages, which contain backported patches to correct these issues. 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/site/articles/11258

Affected Products

ProductVersionArch
Red Hat Storage for Public Cloud (via RHUI)2.1x86_64
Red Hat Gluster Storage Server for On-premise2.1x86_64

Updated Packages

  • samba-winbind-devel-3.6.9-167.5.1.el6rhs.x86_64.rpm
  • samba-swat-3.6.9-167.5.1.el6rhs.x86_64.rpm
  • samba-glusterfs-3.6.9-167.5.1.el6rhs.x86_64.rpm
  • samba-client-3.6.9-167.5.1.el6rhs.x86_64.rpm
  • samba-debuginfo-3.6.9-167.5.1.el6rhs.x86_64.rpm
  • samba-3.6.9-167.5.1.el6rhs.x86_64.rpm
  • samba-3.6.9-167.5.1.el6rhs.src.rpm
  • samba-winbind-3.6.9-167.5.1.el6rhs.x86_64.rpm
  • libsmbclient-devel-3.6.9-167.5.1.el6rhs.x86_64.rpm
  • samba-winbind-clients-3.6.9-167.5.1.el6rhs.x86_64.rpm
  • samba-winbind-krb5-locator-3.6.9-167.5.1.el6rhs.x86_64.rpm
  • samba-doc-3.6.9-167.5.1.el6rhs.x86_64.rpm
  • libsmbclient-3.6.9-167.5.1.el6rhs.x86_64.rpm
  • samba-common-3.6.9-167.5.1.el6rhs.x86_64.rpm
  • samba-domainjoin-gui-3.6.9-167.5.1.el6rhs.x86_64.rpm

Fixes

CVEs

References

Additional information