Integer Underflow Affecting freerdp-server-debuginfo package, versions <2:3.32.1-1.amzn2023.0.1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.25% (16th percentile)

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  • Snyk IDSNYK-AMZN2023-FREERDPSERVERDEBUGINFO-21703852
  • published25 Oct 2026
  • disclosed17 Oct 2026

Introduced: 17 Oct 2026

NewCVE-2026-111881  (opens in a new tab)
CWE-191  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 freerdp-server-debuginfo to version 2:3.32.1-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-3307.

NVD Description

Note: Versions mentioned in the description apply only to the upstream freerdp-server-debuginfo package and not the freerdp-server-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

FreeRDP from 3.14.1 before 3.32.0 contains an integer underflow in the WinPR BMP writer, where a mismatched stride calculation passes SIZE_MAX - 3 to Stream_Zero for sub-byte images. A malicious RDP clipboard peer can return a crafted 1-bpp BMP processed by clipboard_synthesize_image_format_to_bmp for CF_DIB/CF_DIBV5, crashing the client or causing an out-of-bounds write.

CVSS Base Scores

version 3.1