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 5 and 6; Red Hat Enterprise Linux 5.3 Long Life;
and Red Hat Enterprise Linux 5.6, 6.0 and 6.1 Extended Update 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
-
Red Hat Enterprise Linux Server 6 x86_64
-
Red Hat Enterprise Linux Server 6 i386
-
Red Hat Enterprise Linux Server 5 x86_64
-
Red Hat Enterprise Linux Server 5 ia64
-
Red Hat Enterprise Linux Server 5 i386
-
Red Hat Enterprise Linux Server - Extended Update Support 6.2 x86_64
-
Red Hat Enterprise Linux Server - Extended Update Support 6.2 i386
-
Red Hat Enterprise Linux Server - Extended Update Support 6.1 x86_64
-
Red Hat Enterprise Linux Server - Extended Update Support 6.1 i386
-
Red Hat Enterprise Linux Server - Extended Update Support 5.6 x86_64
-
Red Hat Enterprise Linux Server - Extended Update Support 5.6 ia64
-
Red Hat Enterprise Linux Server - Extended Update Support 5.6 i386
-
Red Hat Enterprise Linux Server - AUS 5.6 i386
-
Red Hat Enterprise Linux Server - AUS 5.3 i386
-
Red Hat Enterprise Linux Workstation 6 i386
-
Red Hat Enterprise Linux Workstation 5 i386
-
Red Hat Enterprise Linux Desktop 6 x86_64
-
Red Hat Enterprise Linux Desktop 5 x86_64
-
Red Hat Enterprise Linux Desktop 5 i386
-
Red Hat Enterprise Linux for IBM z Systems 6 s390x
-
Red Hat Enterprise Linux for IBM z Systems 5 s390x
-
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.2 s390x
-
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.1 s390x
-
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.6 s390x
-
Red Hat Enterprise Linux for Power, big endian 6 ppc64
-
Red Hat Enterprise Linux for Power, big endian 5 ppc
-
Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.2 ppc64
-
Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.1 ppc64
-
Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.6 ppc
-
Red Hat Enterprise Linux for Scientific Computing 6 x86_64
-
Red Hat Enterprise Linux Server from RHUI 6 x86_64
-
Red Hat Enterprise Linux Server from RHUI 6 i386
-
Red Hat Enterprise Linux Server from RHUI 5 x86_64
-
Red Hat Enterprise Linux Server from RHUI 5 i386
-
Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.2 x86_64
-
Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.2 i386
-
Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.1 x86_64
-
Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.1 i386
-
Red Hat Enterprise Linux Server - Extended Update Support from RHUI 5.6 x86_64
-
Red Hat Enterprise Linux Server - Extended Update Support from RHUI 5.6 i386
-
Red Hat Virtual Storage Appliance (from RHUI) 6.1 x86_64
-
Red Hat Storage 2.0 x86_64
-
Red Hat Gluster Storage Server for On-premise 2.0 x86_64
-
Red Hat Storage for Public Cloud (via RHUI) 2.0 x86_64
-
Red Hat Enterprise Linux Server - AUS 6.2 x86_64
-
Red Hat Enterprise Linux Server - AUS 5.6 x86_64
-
Red Hat Enterprise Linux Server - AUS 5.6 ia64
-
Red Hat Enterprise Linux Server - AUS 5.3 x86_64
-
Red Hat Enterprise Linux Server - AUS 5.3 ia64
-
Red Hat Enterprise Linux Workstation 6 x86_64
-
Red Hat Enterprise Linux Workstation 5 x86_64
-
Red Hat Enterprise Linux Desktop 6 i386
Fixes
- BZ - 804093 - CVE-2012-1182 samba: Multiple heap-based buffer overflows in memory management based on NDR marshalling code output
CVEs
References