Issued:

2011-03-01

Updated:

2011-03-01

RHSA-2011:0306 - Important: samba3x security update

Synopsis

Important: samba3x security update

Type/Severity

Security Advisory Important

Topic

Updated samba3x packages that fix one security issue are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having important 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 a suite of programs used by machines to share files, printers, and other information.

A flaw was found in the way Samba handled file descriptors. If an attacker were able to open a large number of file descriptors on the Samba server, they could flip certain stack bits to "1" values, resulting in the Samba server (smbd) crashing. (CVE-2011-0719)

Red Hat would like to thank the Samba team for reporting this issue.

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 This content is not included.https://access.redhat.com/kb/docs/DOC-11259

Affected Products

Updated Packages

• samba3x-winbind-devel-3.5.4-0.70.el5_6.1.ppc64.rpm
• samba3x-doc-3.5.4-0.70.el5_6.1.x86_64.rpm
• samba3x-domainjoin-gui-3.5.4-0.70.el5_6.1.x86_64.rpm
• samba3x-3.5.4-0.70.el5_6.1.i386.rpm
• samba3x-winbind-3.5.4-0.70.el5_6.1.s390.rpm
• samba3x-doc-3.5.4-0.70.el5_6.1.i386.rpm
• samba3x-common-3.5.4-0.70.el5_6.1.s390x.rpm
• samba3x-domainjoin-gui-3.5.4-0.70.el5_6.1.ppc.rpm
• samba3x-3.5.4-0.70.el5_6.1.src.rpm
• samba3x-winbind-devel-3.5.4-0.70.el5_6.1.s390x.rpm
• samba3x-common-3.5.4-0.70.el5_6.1.x86_64.rpm
• samba3x-client-3.5.4-0.70.el5_6.1.s390x.rpm
• samba3x-common-3.5.4-0.70.el5_6.1.ia64.rpm
• samba3x-doc-3.5.4-0.70.el5_6.1.s390x.rpm
• samba3x-client-3.5.4-0.70.el5_6.1.ia64.rpm
• samba3x-doc-3.5.4-0.70.el5_6.1.ia64.rpm
• samba3x-domainjoin-gui-3.5.4-0.70.el5_6.1.ia64.rpm
• samba3x-swat-3.5.4-0.70.el5_6.1.i386.rpm
• samba3x-winbind-3.5.4-0.70.el5_6.1.ppc64.rpm
• samba3x-winbind-3.5.4-0.70.el5_6.1.ia64.rpm
• samba3x-swat-3.5.4-0.70.el5_6.1.x86_64.rpm
• samba3x-client-3.5.4-0.70.el5_6.1.x86_64.rpm
• samba3x-winbind-devel-3.5.4-0.70.el5_6.1.ppc.rpm
• samba3x-domainjoin-gui-3.5.4-0.70.el5_6.1.s390x.rpm
• samba3x-client-3.5.4-0.70.el5_6.1.ppc.rpm
• samba3x-winbind-3.5.4-0.70.el5_6.1.s390x.rpm
• samba3x-swat-3.5.4-0.70.el5_6.1.ia64.rpm
• samba3x-winbind-devel-3.5.4-0.70.el5_6.1.i386.rpm
• samba3x-common-3.5.4-0.70.el5_6.1.ppc.rpm
• samba3x-common-3.5.4-0.70.el5_6.1.i386.rpm
• samba3x-winbind-devel-3.5.4-0.70.el5_6.1.x86_64.rpm
• samba3x-3.5.4-0.70.el5_6.1.s390x.rpm
• samba3x-3.5.4-0.70.el5_6.1.ppc.rpm
• samba3x-3.5.4-0.70.el5_6.1.ia64.rpm
• samba3x-client-3.5.4-0.70.el5_6.1.i386.rpm
• samba3x-domainjoin-gui-3.5.4-0.70.el5_6.1.i386.rpm
• samba3x-swat-3.5.4-0.70.el5_6.1.s390x.rpm
• samba3x-winbind-3.5.4-0.70.el5_6.1.i386.rpm
• samba3x-swat-3.5.4-0.70.el5_6.1.ppc.rpm
• samba3x-winbind-3.5.4-0.70.el5_6.1.ppc.rpm
• samba3x-3.5.4-0.70.el5_6.1.x86_64.rpm
• samba3x-winbind-devel-3.5.4-0.70.el5_6.1.ia64.rpm
• samba3x-doc-3.5.4-0.70.el5_6.1.ppc.rpm
• samba3x-winbind-3.5.4-0.70.el5_6.1.x86_64.rpm
• samba3x-winbind-devel-3.5.4-0.70.el5_6.1.s390.rpm

Fixes

• This content is not included.BZ - 678328

CVEs

• CVE-2011-0719

References

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

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.