CVE-2023-39351
Published: 31 August 2023
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions of FreeRDP are subject to a Null Pointer Dereference leading a crash in the RemoteFX (rfx) handling. Inside the `rfx_process_message_tileset` function, the program allocates tiles using `rfx_allocate_tiles` for the number of numTiles. If the initialization process of tiles is not completed for various reasons, tiles will have a NULL pointer. Which may be accessed in further processing and would cause a program crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
freerdp2 Launchpad, Ubuntu, Debian |
bionic |
Released
(2.2.0+dfsg1-0ubuntu0.18.04.4+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
| focal |
Released
(2.2.0+dfsg1-0ubuntu0.20.04.5)
|
|
| jammy |
Released
(2.6.1+dfsg1-3ubuntu2.4)
|
|
| lunar |
Released
(2.10.0+dfsg1-1ubuntu0.2)
|
|
| mantic |
Released
(2.10.0+dfsg1-1.1ubuntu1)
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Released
(2.11.0)
|
|
| xenial |
Ignored
(end of standard support)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |