CVE-2018-20177

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

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/	Exploit Third Party Advisory
https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1	Patch
https://www.debian.org/security/2019/dsa-4394	Third Party Advisory
https://security.gentoo.org/glsa/201903-06	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00030.html	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/106938	Broken Link Third Party Advisory VDB Entry
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:rdesktop:rdesktop:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:9.0:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:opensuse:leap:15.1:::::::*
	cpe:2.3:o:opensuse:backports:sle-15:sp1::::::

Information

Published : 2019-03-15 11:29

Updated : 2023-03-03 13:01

NVD link : CVE-2018-20177

Mitre link : CVE-2018-20177

JSON object : View

CWE

CWE-787

Out-of-bounds Write

CWE-190

Integer Overflow or Wraparound

Products Affected

debian

debian_linux

rdesktop

rdesktop

opensuse

backports
leap

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9.8 /10