CVE-2021-41160
Published: 21 October 2021
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions a malicious server might trigger out of bound writes in a connected client. Connections using GDI or SurfaceCommands to send graphics updates to the client might send `0` width/height or out of bound rectangles to trigger out of bound writes. With `0` width or heigth the memory allocation will be `0` but the missing bounds checks allow writing to the pointer at this (not allocated) region. This issue has been patched in FreeRDP 2.4.1.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
freerdp Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| trusty |
Ignored
(out of standard support)
|
|
| upstream |
Needs triage
|
|
| xenial |
Needs triage
|
|
|
freerdp2 Launchpad, Ubuntu, Debian |
bionic |
Released
(2.2.0+dfsg1-0ubuntu0.18.04.2)
|
| focal |
Released
(2.2.0+dfsg1-0ubuntu0.20.04.2)
|
|
| hirsute |
Released
(2.3.0+dfsg1-1ubuntu0.1)
|
|
| impish |
Released
(2.3.0+dfsg1-2ubuntu0.1)
|
|
| jammy |
Released
(2.3.0+dfsg1-2ubuntu2)
|
|
| kinetic |
Released
(2.3.0+dfsg1-2ubuntu2)
|
|
| lunar |
Released
(2.3.0+dfsg1-2ubuntu2)
|
|
| trusty |
Ignored
(out of standard support)
|
|
| upstream |
Needs triage
|
|
| xenial |
Ignored
(out of standard support)
|
|
|
Patches: upstream: https://github.com/FreeRDP/FreeRDP/commit/217e0caa181fc1690cf84dd6a3ba1a4f90c02692 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |