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CVE-2018-20181 Details

Description

rdesktop 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() and results in memory corruption and probably even a remote code execution.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html	CVE
https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1	CVE	PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00030.html	CVE	Mailing ListThird Party Advisory
https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/	CVE	ExploitThird Party Advisory
https://security.gentoo.org/glsa/201903-06	CVE	Third Party Advisory
https://www.debian.org/security/2019/dsa-4394	CVE	Third Party Advisory
http://www.securityfocus.com/bid/106938	CVE	Third Party AdvisoryVDB Entry
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html	[email protected]
https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1	[email protected]	PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00030.html	[email protected]	Mailing ListThird Party Advisory
https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/	[email protected]	ExploitThird Party Advisory
https://security.gentoo.org/glsa/201903-06	[email protected]	Third Party Advisory
https://www.debian.org/security/2019/dsa-4394	[email protected]	Third Party Advisory
http://www.securityfocus.com/bid/106938	[email protected]	Third Party AdvisoryVDB Entry

see all 14 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-191	Integer Underflow (Wrap or Wraparound)	[email protected]
CWE-787	Out-of-bounds Write	[email protected]

Affected Products

Product	Versions
rdesktop rdesktop	<= 1.8.3
CPE cpe:2.3:a:rdesktop:rdesktop:::::::: Remediation No remediation found in references.
debian debian linux	8.0 9.0
CPE cpe:2.3:o:debian:debian_linux:8.0:::::::* cpe:2.3:o:debian:debian_linux:9.0:::::::* Remediation No remediation found in references.

Change History

8 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Aug 24, 2020	CWE Remap	[email protected]
Sep 15, 2019	CVE Modified	[email protected]
Mar 18, 2019	Modified Analysis	[email protected]
Mar 18, 2019	CVE Modified	[email protected]
Mar 16, 2019	Initial Analysis	[email protected]