Heap-based buffer overflow in rdesktop - CVE-2018-8795
Published: February 11, 2019 / Updated: May 18, 2020
Vulnerability identifier: #VU17473
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2018-8795
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: rdesktop.org
Affected software:
rdesktop
rdesktop
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to an integer overflow. A remote attacker can trick the victim who is using a Remote Desktop Protocol (RDP) client on a targeted system into connecting to an attacker-controlled RDP server, trigger out-of-bounds write condition in the process_bitmap_updates() function and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2018-8795
Update to version 1.8.4.