Summary
USN-8004-1 fixed vulnerabilities in FreeRDP. The update for
CVE-2026-23533 introduced a regression. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Kim Dong Han discovered that FreeRDP did not correctly validate the size of
certain variables, which could cause a buffer overflow. An attacker could
possibly use this issue to cause a denial of service or execute arbitrary
code.
Fixed packages 4
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 22.04 LTS 22.04:LTS | freerdp2 | 2.6.1+dfsg1-3ubuntu2.9 |
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | freerdp2 | 2.2.0+dfsg1-0ubuntu0.18.04.4+esm4 |
| Ubuntu · Pro 20.04 LTS Pro:20.04:LTS | freerdp2 | 2.6.1+dfsg1-0ubuntu0.20.04.2+esm2 |
| Ubuntu · Pro 24.04 LTS Pro:24.04:LTS | freerdp2 | 2.11.5+dfsg1-1ubuntu0.1~esm4 |
Vulnerabilities 1
-
High 7.7
FreeRDP has heap-buffer-overflow in clear_decompress_residual_data
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow occurs in the RDPGFX ClearCodec decode path when maliciously crafted residual data causes out-of-bounds writes during color output. A …