Descripción: | Description:
The remote host is missing updates announced in advisory RHSA-2007:1017.
Samba is a suite of programs used by machines to share files, printers, and other information.
A buffer overflow flaw was found in the way Samba creates NetBIOS replies. If a Samba server is configured to run as a WINS server, a remote unauthenticated user could cause the Samba server to crash or execute arbitrary code. (CVE-2007-5398)
A heap based buffer overflow flaw was found in the way Samba authenticates users. A remote unauthenticated user could trigger this flaw to cause the Samba server to crash. Careful analysis of this flaw has determined that arbitrary code execution is not possible, and under most circumstances will not result in a crash of the Samba server. (CVE-2007-4572)
A flaw was found in the way Samba assigned group IDs under certain conditions. If the winbind nss info parameter in smb.conf is set to either sfu or rfc2307, Samba users are incorrectly assigned the group ID of 0. (CVE-2007-4138)
Red Hat would like to thank Alin Rad Pop of Secunia Research, Rick King, and the Samba developers for responsibly disclosing these issues.
All Samba users are advised to upgrade to these updated packages, which contain a backported patch to correct these issues.
Solution: Please note that this update is available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date
http://rhn.redhat.com/errata/RHSA-2007-1017.html http://www.redhat.com/security/updates/classification/#critical
Risk factor : Critical
CVSS Score: 9.3
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