Out-of-bounds write in FreeRDP and Debian Linux - CVE-2017-2834
Published: April 24, 2018 / Updated: August 8, 2020
Vulnerability identifier: #VU37163
CSH Severity: Medium
CVSS v4: 8.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-2834
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.
An exploitable code execution vulnerability exists in the authentication functionality of FreeRDP 2.0.0-beta1+android11. A specially crafted server response can cause an out-of-bounds write resulting in an exploitable condition. An attacker can compromise the server or use a man in the middle attack to trigger this vulnerability.
Affected software
FreeRDP
Debian Linux
Fedora
Opensuse
remmina
freerdp
Debian Linux
Fedora
Opensuse
remmina
freerdp
How to mitigate CVE-2017-2834
Install update from vendor's website.
remmina - addressed in versions 1.2.0-0.39.20170724git0387ee0.fc25, 1.2.0-0.39.20170724git0387ee0.fc26
freerdp - addressed in versions 2.0.0-31.20170724gitf8c9f43.fc25, 2.0.0-31.20170724gitf8c9f43.fc26
freerdp - addressed in versions 2.0.0-31.20170724gitf8c9f43.fc25, 2.0.0-31.20170724gitf8c9f43.fc26