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Last updated: 3/4/2015 6:12:50 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2008-1803

Original release date: 05/12/2008
Last revised: 10/11/2011


Integer signedness error in the xrealloc function (rdesktop.c) in RDesktop 1.5.0 allows remote attackers to execute arbitrary code via unknown parameters that trigger a heap-based overflow. NOTE: the role of the channel_process function was not specified by the original researcher.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 9.3 (HIGH) (AV:N/AC:M/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore: 10.0
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: VUPEN
Name: ADV-2008-2403
Type: Advisory
External Source: FEDORA
Name: FEDORA-2008-3886
External Source: IDEFENSE
Name: 20080507 Multiple Vendor rdesktop channel_process() Integer Signedness Vulnerability
External Source: REDHAT
Name: RHSA-2008:0575
Type: Advisory
External Source: CONFIRM
Name: http://support.avaya.com/elmodocs2/security/ASA-2008-360.htm
External Source: DEBIAN
Name: DSA-1573
External Source: GENTOO
Name: GLSA-200806-04
External Source: MANDRIVA
Name: MDVSA-2008:101
External Source: XF
Name: rdesktop-xrealloc-bo(42277)
External Source: UBUNTU
Name: USN-646-1
External Source: FEDORA
Name: FEDORA-2008-3985
External Source: FEDORA
Name: FEDORA-2008-3917
External Source: CONFIRM
Name: http://sourceforge.net/mailarchive/message.php?msg_name=20080511065217.GA24455%40cse.unsw.EDU.AU
Type: Patch Information
External Source: SUNALERT
Name: 240708
External Source: CONFIRM
Name: http://rdesktop.cvs.sourceforge.net/rdesktop/rdesktop/rdesktop.c?r1=1.161&r2=1.162&pathrev=HEAD
External Source: BID
Name: 29097
External Source: SECTRACK
Name: 1019992
External Source: OVAL
Name: oval:org.mitre.oval:def:9800
External Source: VUPEN
Name: ADV-2008-1467
Type: Advisory

References to Check Content

Identifier: oval:org.mitre.oval:def:9800
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/a:rdesktop:rdesktop:1.5.0

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)