Divide By Zero Affecting freerdp-libs-debuginfo package, versions <2:3.31.0-1.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.55% (44th percentile)

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  • Snyk IDSNYK-AMZN2023-FREERDPLIBSDEBUGINFO-19817109
  • published15 Sept 2026
  • disclosed19 Aug 2026

Introduced: 19 Aug 2026

CVE-2026-63117  (opens in a new tab)
CWE-369  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 freerdp-libs-debuginfo to version 2:3.31.0-1.amzn2023 or higher.
This issue was patched in ALAS2023-2026-2142.

NVD Description

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

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, an authenticated RDP client can advertise DVI ADPCM with nBlockAlign equal to 8 and nChannels equal to 2 to make the bs calculation in rdpsnd_server_select_format in channels/rdpsnd/server/rdpsnd_main.c equal zero. The subsequent out_frames modulo bs operation raises SIGFPE and terminates the server-side rdpsnd channel process. This vulnerability fixed in 3.28.0.

CVSS Base Scores

version 3.1