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Red Hat: RHSA-2010:0697-01 Critical: Samba Code Execution Risk

red hat
Calendar Grey September 14, 2010
Dist Redhat Esm H88
This advisory highlights crucial Samba updates, featuring key security fixes for Red Hat Enterprise Linux. Users must review and implement these updates to protect their systems
Updated samba packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 3, 4, and 5, and Red Hat Enterprise Linux 4.7, 5.3, and 5.4 Extended U...

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

Summary

Samba is a suite of programs used by machines to share files, printers, and other information.
A missing array boundary checking flaw was found in the way Samba parsed the binary representation of Windows security identifiers (SIDs). A malicious client could send a specially-crafted SMB request to the Samba server, resulting in arbitrary code execution with the privileges of the Samba server (smbd). (CVE-2010-3069)
For Red Hat Enterprise Linux 4, this update also fixes the following bug:
* Previously, the restorecon utility was required during the installation of the samba-common package. As a result, attempting to update samba without this utility installed may have failed with the following error:
/var/tmp/rpm-tmp.[xxxxx]: line 7: restorecon: command not found
With this update, the utility is only used when it is already present on the system, and the package is now always updated as expected. (BZ#629602)
Users of Samba are advised to upgrade to these updated packages, which correct these issues. After installing this update, the smb service will be restarted automatically.

Topics%20covered

Topics Covered

security advisory Red Hat buffer overflow critical code execution bug fix Samba

References

https://access.redhat.com/security/cve/CVE-2010-3069 https://access.redhat.com/security/updates/classification#critical

Package List

Red Hat Enterprise Linux AS version 3:
Source:
i386: samba-3.0.9-1.3E.18.i386.rpm samba-client-3.0.9-1.3E.18.i386.rpm samba-common-3.0.9-1.3E.18.i386.rpm samba-debuginfo-3.0.9-1.3E.18.i386.rpm samba-swat-3.0.9-1.3E.18.i386.rpm
ia64: samba-3.0.9-1.3E.18.i386.rpm samba-3.0.9-1.3E.18.ia64.rpm samba-client-3.0.9-1.3E.18.ia64.rpm samba-common-3.0.9-1.3E.18.i386.rpm samba-common-3.0.9-1.3E.18.ia64.rpm samba-debuginfo-3.0.9-1.3E.18.i386.rpm samba-debuginfo-3.0.9-1.3E.18.ia64.rpm samba-swat-3.0.9-1.3E.18.ia64.rpm
ppc: samba-3.0.9-1.3E.18.ppc.rpm samba-3.0.9-1.3E.18.ppc64.rpm samba-client-3.0.9-1.3E.18.ppc.rpm samba-common-3.0.9-1.3E.18.ppc.rpm samba-common-3.0.9-1.3E.18.ppc64.rpm samba-debuginfo-3.0.9-1.3E.18.ppc.rpm samba-debuginfo-3.0.9-1.3E.18.ppc64.rpm samba-swat-3.0.9-1.3E.18.ppc.rpm
s390: samba-3.0.9-1.3E.18.s390.rpm samba-client-3.0.9-1.3E.18.s390.rpm samba-common-3.0.9-1.3E.18.s390.rpm samba-debuginfo-3.0.9-1.3E.18.s390.rpm samba-swat-3.0.9-1.3E.18.s390.rpm
s390x: samba-3.0.9-1.3E.18.s390.rpm samba-3.0.9-1.3E.18.s390x.rpm samba-client-3.0.9-1.3E.18.s390x.rpm samba-common-3.0.9-1.3E.18.s390.rpm samba-common-3.0.9-1.3E.18.s390x.rpm samba-debuginfo-3.0.9-1.3E.18.s390.rpm samba-debuginfo-3.0.9-1.3E.18.s390x.rpm samba-swat-3.0.9-1.3E.18.s390x.rpm
x86_64:

Read the Full Advisory


Severity
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Critical

Advisory ID: RHSA-2010:0697-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2010:0697.html
Issue date: 2010-09-14

Topic

Updated samba packages that fix one security issue and one bug are nowavailable for Red Hat Enterprise Linux 3, 4, and 5, and Red Hat EnterpriseLinux 4.7, 5.3, and 5.4 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 buffer overflow critical code execution bug fix Samba

Relevant Releases Architectures

Red Hat Desktop version 3 - i386, x86_64

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

Red Hat Enterprise Linux (v. 5.3.z server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux (v. 5.4.z server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64

Red Hat Enterprise Linux AS version 4.7.z - 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 3 - i386, ia64, x86_64

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

Red Hat Enterprise Linux ES version 4.7.z - i386, ia64, x86_64

Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64

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

Bugs Fixed

629602 - restorecon: command not found after upgrade - leaves two samba-common versions

630869 - CVE-2010-3069 Samba: Stack-based buffer overflow by processing specially-crafted SID records

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