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Vulnerability record · CVE-2008-1801 · published 12 May 2008

CVE-2008-1801: Rdesktop vulnerability

Rdesktop · Rdesktop

Integer underflow in the iso_recv_msg function (iso.c) in rdesktop 1.5.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a Remote Desktop Protocol (RDP) request with a small length field.

9.3 CVSS 2.0 High EPSS 13% · top 3.8% CWE-189 · CWE-189
9.3CVSS 2.0 base score
13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
58References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

Integer underflow in the iso_recv_msg function (iso.c) in rdesktop 1.5.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a Remote Desktop Protocol (RDP) request with a small length field.

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=696
http://rdesktop.cvs.sourceforge.net/rdesktop/rdesktop/iso.c?r1=1.19&r2=1.20&pathrev=HEAD Exploit
http://secunia.com/advisories/30118
http://secunia.com/advisories/30248
http://secunia.com/advisories/30380
http://secunia.com/advisories/30713
http://secunia.com/advisories/31222
http://secunia.com/advisories/31224
http://secunia.com/advisories/31928
http://security.gentoo.org/glsa/glsa-200806-04.xml
http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.395286
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
http://www.redhat.com/support/errata/RHSA-2008-0576.html
http://www.redhat.com/support/errata/RHSA-2008-0725.html
http://www.securityfocus.com/bid/29097
http://www.securitytracker.com/id?1019990
http://www.ubuntu.com/usn/usn-646-1
http://www.vupen.com/english/advisories/2008/1467/references
http://www.vupen.com/english/advisories/2008/2403
https://exchange.xforce.ibmcloud.com/vulnerabilities/42272
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11570
https://www.exploit-db.com/exploits/5561
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=696
http://rdesktop.cvs.sourceforge.net/rdesktop/rdesktop/iso.c?r1=1.19&r2=1.20&pathrev=HEAD Exploit
http://secunia.com/advisories/30118
http://secunia.com/advisories/30248
http://secunia.com/advisories/30380
http://secunia.com/advisories/30713
http://secunia.com/advisories/31222
http://secunia.com/advisories/31224
http://secunia.com/advisories/31928
http://security.gentoo.org/glsa/glsa-200806-04.xml
http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.395286

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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-2008-1801), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.