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Red Hat: RHSA-2012-0332-01 Critical: Samba Remote Code Execution

red hat
Calendar Grey February 23, 2012
Scroller Redhat
New samba updates issued for CentOS address severe security vulnerability enabling remote code execution. Upgrade immediately!
Updated samba packages that fix one security issue are now available for Red Hat Enterprise Linux 4 and 5, and Red Hat Enterprise Linux 5.3 Long Life, and 5.6 Extended Update Suppo...

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/articles/11258

Summary

Samba is a suite of programs used by machines to share files, printers, and other information.
An input validation flaw was found in the way Samba handled Any Batched (AndX) requests. A remote, unauthenticated attacker could send a specially-crafted SMB packet to the Samba server, possibly resulting in arbitrary code execution with the privileges of the Samba server (root). (CVE-2012-0870)
Red Hat would like to thank the Samba team for reporting this issue. Upstream acknowledges Andy Davis of NGS Secure as the original reporter.
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 Red Hat critical software update remote code execution samba security patch

References

https://access.redhat.com/security/cve/CVE-2012-0870 https://access.redhat.com/security/updates/classification#critical

Package List

Red Hat Enterprise Linux AS version 4:
Source:
i386: samba-3.0.33-0.35.el4.i386.rpm samba-client-3.0.33-0.35.el4.i386.rpm samba-common-3.0.33-0.35.el4.i386.rpm samba-debuginfo-3.0.33-0.35.el4.i386.rpm samba-swat-3.0.33-0.35.el4.i386.rpm
ia64: samba-3.0.33-0.35.el4.ia64.rpm samba-client-3.0.33-0.35.el4.ia64.rpm samba-common-3.0.33-0.35.el4.i386.rpm samba-common-3.0.33-0.35.el4.ia64.rpm samba-debuginfo-3.0.33-0.35.el4.i386.rpm samba-debuginfo-3.0.33-0.35.el4.ia64.rpm samba-swat-3.0.33-0.35.el4.ia64.rpm
ppc: samba-3.0.33-0.35.el4.ppc.rpm samba-client-3.0.33-0.35.el4.ppc.rpm samba-common-3.0.33-0.35.el4.ppc.rpm samba-common-3.0.33-0.35.el4.ppc64.rpm samba-debuginfo-3.0.33-0.35.el4.ppc.rpm samba-debuginfo-3.0.33-0.35.el4.ppc64.rpm samba-swat-3.0.33-0.35.el4.ppc.rpm
s390: samba-3.0.33-0.35.el4.s390.rpm samba-client-3.0.33-0.35.el4.s390.rpm samba-common-3.0.33-0.35.el4.s390.rpm samba-debuginfo-3.0.33-0.35.el4.s390.rpm samba-swat-3.0.33-0.35.el4.s390.rpm
s390x: samba-3.0.33-0.35.el4.s390x.rpm samba-client-3.0.33-0.35.el4.s390x.rpm samba-common-3.0.33-0.35.el4.s390.rpm samba-common-3.0.33-0.35.el4.s390x.rpm samba-debuginfo-3.0.33-0.35.el4.s390.rpm samba-debuginfo-3.0.33-0.35.el4.s390x.rpm samba-swat-3.0.33-0.35.el4.s390x.rpm
x86_64: samba-3.0.33-0.35.el4.x86_64.rpm

Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2012:0332-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2012:0332.html
Issue date: 2012-02-23

Topic

Updated samba packages that fix one security issue are now available forRed Hat Enterprise Linux 4 and 5, and Red Hat Enterprise Linux 5.3 LongLife, and 5.6 Extended Update Support.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 Red Hat critical software update remote code execution samba security patch

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 AS version 4 - i386, ia64, ppc, s390, s390x, x86_64

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

Red Hat Enterprise Linux Desktop version 4 - i386, x86_64

Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64

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

Red Hat Enterprise Linux Long Life (v. 5.3 server) - i386, ia64, x86_64

Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

Bugs Fixed

795509 - CVE-2012-0870 samba: Any Batched ("AndX") request processing infinite recursion and heap-based buffer overflow

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