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Red Hat Enterprise Linux 6: RHSA-2014:1009-01 Critical: Samba4 RCE

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Calendar Grey August 5, 2014
Scroller Redhat
The latest samba4 security patch for Red Hat Enterprise Linux is essential for addressing serious remote code execution vulnerabilities, helping prevent unauthorized access.
Updated samba4 packages that fix one security issue are now available for Red Hat Enterprise Linux 6

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 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 Samba's NetBIOS message block daemon (nmbd). An attacker on the local network could use this flaw to send specially crafted packets that, when processed by nmbd, could possibly lead to arbitrary code execution with root privileges. (CVE-2014-3560)
All Samba users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, the smb service will be restarted automatically.

Topics%20covered

Topics Covered

security advisory red hat remote code execution patch important linux update samba4

References

https://access.redhat.com/security/cve/CVE-2014-3560 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: samba4-4.0.0-63.el6_5.rc4.src.rpm
i386: samba4-4.0.0-63.el6_5.rc4.i686.rpm samba4-client-4.0.0-63.el6_5.rc4.i686.rpm samba4-common-4.0.0-63.el6_5.rc4.i686.rpm samba4-dc-4.0.0-63.el6_5.rc4.i686.rpm samba4-dc-libs-4.0.0-63.el6_5.rc4.i686.rpm samba4-debuginfo-4.0.0-63.el6_5.rc4.i686.rpm samba4-devel-4.0.0-63.el6_5.rc4.i686.rpm samba4-libs-4.0.0-63.el6_5.rc4.i686.rpm samba4-pidl-4.0.0-63.el6_5.rc4.i686.rpm samba4-python-4.0.0-63.el6_5.rc4.i686.rpm samba4-swat-4.0.0-63.el6_5.rc4.i686.rpm samba4-test-4.0.0-63.el6_5.rc4.i686.rpm samba4-winbind-4.0.0-63.el6_5.rc4.i686.rpm samba4-winbind-clients-4.0.0-63.el6_5.rc4.i686.rpm samba4-winbind-krb5-locator-4.0.0-63.el6_5.rc4.i686.rpm
x86_64: samba4-4.0.0-63.el6_5.rc4.x86_64.rpm samba4-client-4.0.0-63.el6_5.rc4.x86_64.rpm samba4-common-4.0.0-63.el6_5.rc4.x86_64.rpm samba4-dc-4.0.0-63.el6_5.rc4.x86_64.rpm samba4-dc-libs-4.0.0-63.el6_5.rc4.x86_64.rpm samba4-debuginfo-4.0.0-63.el6_5.rc4.x86_64.rpm samba4-devel-4.0.0-63.el6_5.rc4.x86_64.rpm samba4-libs-4.0.0-63.el6_5.rc4.x86_64.rpm samba4-pidl-4.0.0-63.el6_5.rc4.x86_64.rpm samba4-python-4.0.0-63.el6_5.rc4.x86_64.rpm samba4-swat-4.0.0-63.el6_5.rc4.x86_64.rpm samba4-test-4.0.0-63.el6_5.rc4.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2014:1009-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2014:1009.html
Issue date: 2014-08-05

Topic

Updated samba4 packages that fix one security issue are now available forRed Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as havingImportant security impact. A Common Vulnerability Scoring System (CVSS)base score, which gives a detailed severity rating, is available from theCVE link in the References section.

Topics%20covered

Topics Covered

security advisory red hat remote code execution patch important linux update samba4

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Bugs Fixed

1126010 - CVE-2014-3560 samba: remote code execution in nmbd

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