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Red Hat Enterprise Linux: RHSA-2012:0466-01 Urgent: Samba3x Buffer Overflow

red hat
Calendar Grey April 10, 2012
Dist Redhat Esm H88
Essential samba3x patch released for Red Hat Enterprise Linux addresses significant buffer overflow vulnerability. Further information enclosed.
Updated samba3x packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 5.6 Extended Update Support

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

Summary

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.

Topics%20covered

Topics Covered

security advisory security update buffer overflow software patch Red Hat Enterprise Linux critical security samba3x

References

https://access.redhat.com/security/cve/CVE-2012-1182 https://access.redhat.com/security/updates/classification/#critical

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: samba3x-3.5.10-0.108.el5_8.i386.rpm samba3x-client-3.5.10-0.108.el5_8.i386.rpm samba3x-common-3.5.10-0.108.el5_8.i386.rpm samba3x-debuginfo-3.5.10-0.108.el5_8.i386.rpm samba3x-doc-3.5.10-0.108.el5_8.i386.rpm samba3x-domainjoin-gui-3.5.10-0.108.el5_8.i386.rpm samba3x-swat-3.5.10-0.108.el5_8.i386.rpm samba3x-winbind-3.5.10-0.108.el5_8.i386.rpm
x86_64: samba3x-3.5.10-0.108.el5_8.x86_64.rpm samba3x-client-3.5.10-0.108.el5_8.x86_64.rpm samba3x-common-3.5.10-0.108.el5_8.x86_64.rpm samba3x-debuginfo-3.5.10-0.108.el5_8.i386.rpm samba3x-debuginfo-3.5.10-0.108.el5_8.x86_64.rpm samba3x-doc-3.5.10-0.108.el5_8.x86_64.rpm samba3x-domainjoin-gui-3.5.10-0.108.el5_8.x86_64.rpm samba3x-swat-3.5.10-0.108.el5_8.x86_64.rpm samba3x-winbind-3.5.10-0.108.el5_8.i386.rpm samba3x-winbind-3.5.10-0.108.el5_8.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
i386: samba3x-debuginfo-3.5.10-0.108.el5_8.i386.rpm samba3x-winbind-devel-3.5.10-0.108.el5_8.i386.rpm
x86_64: samba3x-debuginfo-3.5.10-0.108.el5_8.i386.rpm samba3x-debuginfo-3.5.10-0.108.el5_8.x86_64.rpm samba3x-winbind-devel-3.5.10-0.108.el5_8.i386.rpm samba3x-winbind-devel-3.5.10-0.108.el5_8.x86_64.rpm
Red Hat Enterprise Linux EUS (v. 5.6 server):
Source:

Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2012:0466-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2012:0466.html
Issue date: 2012-04-10

Topic

Updated samba3x packages that fix one security issue are now available forRed Hat Enterprise Linux 5 and Red Hat Enterprise Linux 5.6 Extended UpdateSupport.The Red Hat Security Response Team has rated this update as having criticalsecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory security update buffer overflow software patch Red Hat Enterprise Linux critical security samba3x

Relevant Releases Architectures

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux EUS (v. 5.6 server) - i386, ia64, ppc, s390x, x86_64

Bugs Fixed

804093 - CVE-2012-1182 samba: Multiple heap-based buffer overflows in memory management based on NDR marshalling code output

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