CVE-2018-20175 Information

Description

rdesktop versions up to and including v1.8.3 contains several Integer Signedness errors that lead to Out-Of-Bounds Reads in the file mcs.c and result in a Denial of Service (segfault).

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html http://www.securityfocus.com/bid/106938 https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1 https://lists.debian.org/debian-lts-announce/2019/02/msg00030.html https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/ https://security.gentoo.org/glsa/201903-06 https://www.debian.org/security/2019/dsa-4394

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5