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 x86_64
• Red Hat Enterprise Linux Server - AUS 5.6 ia64
• Red Hat Enterprise Linux Server - AUS 5.6 i386
• Red Hat Enterprise Linux Server - AUS 5.3 x86_64
• Red Hat Enterprise Linux Server - AUS 5.3 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• 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 5.3 ia64
• 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

• CVE-2012-1182

References

• https://access.redhat.com/security/updates/classification/#critical

Red Hat Enterprise Linux Server - Extended Update Support 5.6

SRPM
ia64
libsmbclient-3.0.33-3.29.el5_6.5.ia64.rpm	SHA-256: a81d67302ca4a6951c03a695a74b8b17f2195b5c6cf65ee582b872f044f8eae3
libsmbclient-devel-3.0.33-3.29.el5_6.5.ia64.rpm	SHA-256: 423b947de277bd601551877c13a228b3bc13b12d41565aa1d7e2117d208c33df
samba-3.0.33-3.29.el5_6.5.ia64.rpm	SHA-256: e4a5a09ca0eccced3bf71215619e01ef60b20cd59ed2abf056846b4339b2ce67
samba-client-3.0.33-3.29.el5_6.5.ia64.rpm	SHA-256: a7e8f407db01d5ef3628b12489b67eb6fa26ddecb3f05d78afe634836b7c4e40
samba-common-3.0.33-3.29.el5_6.5.ia64.rpm	SHA-256: 4f9c706274db71e094e689f423b3027cd638973bbe84e3d51c6a7e720950d075
samba-swat-3.0.33-3.29.el5_6.5.ia64.rpm	SHA-256: eec3218b291f75f3b66d4a6848c7ab09ee8606acbb5e6e7b94240f04e16bf0f4

Red Hat Enterprise Linux Server - AUS 5.6

SRPM
ia64
libsmbclient-3.0.33-3.29.el5_6.5.ia64.rpm	SHA-256: a81d67302ca4a6951c03a695a74b8b17f2195b5c6cf65ee582b872f044f8eae3
libsmbclient-devel-3.0.33-3.29.el5_6.5.ia64.rpm	SHA-256: 423b947de277bd601551877c13a228b3bc13b12d41565aa1d7e2117d208c33df
samba-3.0.33-3.29.el5_6.5.ia64.rpm	SHA-256: e4a5a09ca0eccced3bf71215619e01ef60b20cd59ed2abf056846b4339b2ce67
samba-client-3.0.33-3.29.el5_6.5.ia64.rpm	SHA-256: a7e8f407db01d5ef3628b12489b67eb6fa26ddecb3f05d78afe634836b7c4e40
samba-common-3.0.33-3.29.el5_6.5.ia64.rpm	SHA-256: 4f9c706274db71e094e689f423b3027cd638973bbe84e3d51c6a7e720950d075
samba-swat-3.0.33-3.29.el5_6.5.ia64.rpm	SHA-256: eec3218b291f75f3b66d4a6848c7ab09ee8606acbb5e6e7b94240f04e16bf0f4