----------------------------------------------------------------------


Q1 Factsheets released:

http://secunia.com/resources/factsheets/2011_vendor/


----------------------------------------------------------------------

TITLE:
X.Org xrdb Hostname Command Injection Security Issue

SECUNIA ADVISORY ID:
SA44040

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/44040/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=44040

RELEASE DATE:
2011-04-06

DISCUSS ADVISORY:
http://secunia.com/advisories/44040/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/44040/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=44040

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A security issue has been reported in X.Org xrdb, which can be
exploited by malicious, local users to gain escalated privileges or
by malicious people to compromise a vulnerable system.

The security issue is caused due to the xrdb utility not properly
escaping hostnames, which can be exploited to inject and execute
arbitrary shell commands with the privileges of the user running the
display manager (usually "root") via specially crafted hostnames.

Successful exploitation requires that the attacker can login via
XDMCP (discouraged in untrusted networks for security reasons) or set
a malicious hostname via e.g. DHCP (requires physical access to the
network or control over the DHCP server).

SOLUTION:
Update to xrdb version 1.0.9.

Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Sebastian Krahmer, SUSE security team.

ORIGINAL ADVISORY:
X.Org:
http://lists.freedesktop.org/archives/xorg-announce/2011-April/001636.html

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------