CVE-2023-39355
Published: 31 August 2023
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Versions of FreeRDP on the 3.x release branch before beta3 are subject to a Use-After-Free in processing `RDPGFX_CMDID_RESETGRAPHICS` packets. If `context->maxPlaneSize` is 0, `context->planesBuffer` will be freed. However, without updating `context->planesBuffer`, this leads to a Use-After-Free exploit vector. In most environments this should only result in a crash. This issue has been addressed in version 3.0.0-beta3 and users of the beta 3.x releases are advised to upgrade. There are no known workarounds for this vulnerability.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
freerdp2 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(2.2.0+dfsg1-0ubuntu0.18.04.4)
|
| focal |
Not vulnerable
(2.2.0+dfsg1-0ubuntu0.20.04.4)
|
|
| jammy |
Not vulnerable
(2.6.1+dfsg1-3ubuntu2.3)
|
|
| lunar |
Not vulnerable
(2.10.0+dfsg1-1)
|
|
| mantic |
Not vulnerable
(2.10.0+dfsg1-1.1)
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Needs triage
|
|
| xenial |
Ignored
(end of standard support)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |