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Affected Component
Analysis
freerdp
Patched
Name
CVE-2023-40181
Description
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Integer-Underflow leading to Out-Of-Bound Read in the `zgfx_decompress_segment` function. In the context of `CopyMemory`, it's possible to read data beyond the transmitted packet range and likely cause a 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 issue.
CWEs
Published Date
Updated Date
Workaround
-
Advisories
https://github.com/FreeRDP/FreeRDP/blob/2252d53001d9ce8a452f0a0a5b1f5ed9db6d57f1/libfreerdp/codec/zgfx.c#L256-L261Issue Tracking
https://github.com/FreeRDP/FreeRDP/blob/2252d53001d9ce8a452f0a0a5b1f5ed9db6d57f1/libfreerdp/codec/zgfx.c#L334-L355Issue Tracking
https://github.com/FreeRDP/FreeRDP/blob/2252d53001d9ce8a452f0a0a5b1f5ed9db6d57f1/libfreerdp/codec/zgfx.c#L256-L261Issue Tracking
Analysis#
Vulnerability Ratings#
5.3
CVSSv31
9.1
CVSSv31
Others affected components#
Resolved with patches#
freerdp (yocto:kirkstone)
#
Title
Author
Resolve
1
fix cBitsRemaining calculation
Armin Novak <armin.novak@thincast.com>
CVE-2023-40181