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Vulnerability record · CVE-2008-1803 · published 12 May 2008

CVE-2008-1803: Rdesktop vulnerability

Rdesktop · Rdesktop

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.

9.3 CVSS 2.0 High EPSS 6.7% · top 6.3% CWE-189 · CWE-189
9.3CVSS 2.0 base score
6.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
48References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

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.

AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=698
http://rdesktop.cvs.sourceforge.net/rdesktop/rdesktop/rdesktop.c?r1=1.161&r2=1.162&pathrev=HEAD Exploit
http://secunia.com/advisories/30118 Vendor Advisory
http://secunia.com/advisories/30248 Vendor Advisory
http://secunia.com/advisories/30713 Vendor Advisory
http://secunia.com/advisories/31224 Vendor Advisory
http://secunia.com/advisories/31928 Vendor Advisory
http://security.gentoo.org/glsa/glsa-200806-04.xml
http://sourceforge.net/mailarchive/message.php?msg_name=20080511065217.GA24455%40cse.unsw.EDU.AU Patch
http://sunsolve.sun.com/search/document.do?assetkey=1-26-240708-1
http://support.avaya.com/elmodocs2/security/ASA-2008-360.htm
http://www.debian.org/security/2008/dsa-1573
http://www.mandriva.com/security/advisories?name=MDVSA-2008:101
http://www.redhat.com/archives/fedora-package-announce/2008-May/msg00244.html
http://www.redhat.com/archives/fedora-package-announce/2008-May/msg00270.html
http://www.redhat.com/archives/fedora-package-announce/2008-May/msg00296.html
http://www.redhat.com/support/errata/RHSA-2008-0575.html Vendor Advisory
http://www.securityfocus.com/bid/29097
http://www.securitytracker.com/id?1019992
http://www.ubuntu.com/usn/usn-646-1
http://www.vupen.com/english/advisories/2008/1467/references Vendor Advisory
http://www.vupen.com/english/advisories/2008/2403 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/42277
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9800
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=698
http://rdesktop.cvs.sourceforge.net/rdesktop/rdesktop/rdesktop.c?r1=1.161&r2=1.162&pathrev=HEAD Exploit
http://secunia.com/advisories/30118 Vendor Advisory
http://secunia.com/advisories/30248 Vendor Advisory
http://secunia.com/advisories/30713 Vendor Advisory
http://secunia.com/advisories/31224 Vendor Advisory
http://secunia.com/advisories/31928 Vendor Advisory
http://security.gentoo.org/glsa/glsa-200806-04.xml
http://sourceforge.net/mailarchive/message.php?msg_name=20080511065217.GA24455%40cse.unsw.EDU.AU Patch
http://sunsolve.sun.com/search/document.do?assetkey=1-26-240708-1
http://support.avaya.com/elmodocs2/security/ASA-2008-360.htm
http://www.debian.org/security/2008/dsa-1573
http://www.mandriva.com/security/advisories?name=MDVSA-2008:101
http://www.redhat.com/archives/fedora-package-announce/2008-May/msg00244.html
http://www.redhat.com/archives/fedora-package-announce/2008-May/msg00270.html
http://www.redhat.com/archives/fedora-package-announce/2008-May/msg00296.html

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2018-20177Rdesktop integer overflow vulnerabilityrdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in the function rdp_in_unistr() a…EPSS 7.9%9.8CVE-2018-20179Rdesktop vulnerabilityrdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a Heap-Based Buffer Overflow in the function lspci_process() …EPSS 6.8%9.8CVE-2018-20180Rdesktop vulnerabilityrdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a Heap-Based Buffer Overflow in the function rdpsnddbg_proces…EPSS 8.2%9.8CVE-2018-20181Rdesktop out-of-bounds write vulnerabilityrdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a Heap-Based Buffer Overflow in the function seamless_process…EPSS 8.2%9.8CVE-2018-20182Rdesktop memory buffer overflow vulnerabilityrdesktop versions up to and including v1.8.3 contain a Buffer Overflow over the global variables in the function seamless_process_line() that results…EPSS 8.2%9.8CVE-2018-8793Rdesktop heap-based buffer overflow vulnerabilityrdesktop versions up to and including v1.8.3 contain a Heap-Based Buffer Overflow in function cssp_read_tsrequest() that results in a memory corrupti…EPSS 7.1%9.8CVE-2018-8794Rdesktop integer overflow vulnerabilityrdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to an Out-Of-Bounds Write in function process_bitmap_updates() an…EPSS 6.7%9.8CVE-2018-8795Rdesktop integer overflow vulnerabilityrdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in function process_bitmap_update…EPSS 7.4%

Source: NIST National Vulnerability Database (record CVE-2008-1803), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.