Red Hat Security Advisory
Synopsis: Important: samba3x security update
Advisory ID: RHSA-2011:0306-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-0306.html
Issue date: 2011-03-01
CVE Names: CVE-2011-0719
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.
2. 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
Samba is a suite of programs used by machines to share files, printers, and
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.
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