Integer Overflow or Wraparound Affecting libwinpr-devel package, versions <2:2.11.7-7.el9_8.3


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.43% (35th percentile)

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  • Snyk IDSNYK-ORACLE9-LIBWINPRDEVEL-16098811
  • published17 Apr 2026
  • disclosed30 Mar 2026

Introduced: 30 Mar 2026

CVE-2026-33983  (opens in a new tab)
CWE-190  (opens in a new tab)
CWE-252  (opens in a new tab)

How to fix?

Upgrade Oracle:9 libwinpr-devel to version 2:2.11.7-7.el9_8.3 or higher.
This issue was patched in ELSA-2026-19349.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libwinpr-devel package and not the libwinpr-devel package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, progressive_decompress_tile_upgrade() detects a mismatch via progressive_rfx_quant_cmp_equal() but only emits WLog_WARN, execution continues. The wrapped value (247) is used as a shift exponent, causing undefined behavior and an approximately 80 billion iteration loop (CPU DoS). This issue has been patched in version 3.24.2.

CVSS Base Scores

version 3.1