PT-2026-2938 · Freerdp+4 · Freerdp+4
CVSS v3.1
7.4
High
| Vector | AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
FreeRDP versions prior to 3.20.1
Description
FreeRDP, a free implementation of the Remote Desktop Protocol, contains a flaw related to Base64 decoding. A global-buffer-overflow can occur due to implementation-defined char signedness on Arm/AArch64 builds. Specifically, non-ASCII bytes may bypass range restrictions and be used as an index into a global lookup table, leading to out-of-bounds access. The issue stems from the optimization of a guard condition (
c <= 0) into a simple check (c != 0) when char is treated as unsigned.Recommendations
Update to version 3.20.1 or later.
Exploit
Fix
DoS
Memory Corruption
Out of bounds Read
Found an issue in the description? Have something to add? Feel free to write us 👾
Related Identifiers
Affected Products
Freerdp
Linuxmint
Red Os
Rocky Linux
Ubuntu