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Category:Red Hat Local Security Checks
Title:RedHat Security Advisory RHSA-2008:0290

The remote host is missing updates announced in
advisory RHSA-2008:0290.

Samba is a suite of programs used by machines to share files, printers, and
other information.

A heap-based buffer overflow flaw was found in the way Samba clients handle
over-sized packets. If a client connected to a malicious Samba server, it
was possible to execute arbitrary code as the Samba client user. It was
also possible for a remote user to send a specially crafted print request
to a Samba server that could result in the server executing the vulnerable
client code, resulting in arbitrary code execution with the permissions of
the Samba server. (CVE-2008-1105)

Red Hat would like to thank Alin Rad Pop of Secunia Research for
responsibly disclosing this issue.

This update also addresses two issues which prevented Samba from joining
certain Windows domains with tightened security policies, and prevented
certain signed SMB content from working as expected:

* when some Windows® 2000-based domain controllers were set to use
mandatory signing, Samba clients would drop the connection because of an
error when generating signatures. This presented as a Server packet had
invalid SMB signature error to the Samba client. This update corrects the
signature generation error.

* Samba servers using the net ads join command to connect to a Windows
Server® 2003-based domain would fail with failed to get schannel session
key from server and NT_STATUS_ACCESS_DENIED errors. This update
correctly binds to the NETLOGON share, allowing Samba servers to connect to
the domain properly.

Users of Samba are advised to upgrade to these updated packages, which
contain a backported patch to resolve these issues.

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

Risk factor : High

CVSS Score:

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2008-1105
BugTraq ID: 29404
BugTraq ID: 31255
Bugtraq: 20080528 [SAMBA] CVE-2008-1105 - Boundary failure when parsing SMB responses (Google Search)
Bugtraq: 20080529 Secunia Research: Samba "receive_smb_raw()" Buffer OverflowVulnerability (Google Search)
Bugtraq: 20080602 rPSA-2008-0180-1 samba samba-client samba-server samba-swat (Google Search)
Debian Security Information: DSA-1590 (Google Search)
HPdes Security Advisory: HPSBUX02341
HPdes Security Advisory: SSRT080075
SuSE Security Announcement: SUSE-SA:2008:026 (Google Search)
XForce ISS Database: samba-receivesmbraw-bo(42664)
XForce ISS Database: xerox-controller-samba-code-execution(45251)
CopyrightCopyright (c) 2008 E-Soft Inc.

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