Incorrect Calculation of Buffer Size Affecting freerdp package, versions <2:3.6.3-1.amzn2023.0.10


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.01% (3rd percentile)

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  • Snyk IDSNYK-AMZN2023-FREERDP-16067828
  • published15 Apr 2026
  • disclosed30 Mar 2026

Introduced: 30 Mar 2026

NewCVE-2026-33987  (opens in a new tab)
CWE-131  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 freerdp to version 2:3.6.3-1.amzn2023.0.10 or higher.
This issue was patched in ALAS2023-2026-1549.

NVD Description

Note: Versions mentioned in the description apply only to the upstream freerdp package and not the freerdp 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 version 3.24.2, in persistent_cache_read_entry_v3() in libfreerdp/cache/persistent.c, persistent->bmpSize is updated before winpr_aligned_recalloc(). If realloc fails, bmpSize is inflated while bmpData points to the old buffer. This issue has been patched in version 3.24.2.

CVSS Base Scores

version 3.1