Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
FreeRDP FreeRDP
< 3.24.2affected
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4gfm-4p52-h478 ↗
- https://github.com/FreeRDP/FreeRDP/commit/78188ab479c8e6eb9ba2475b3732c76b4bbe5425 ↗
- https://access.redhat.com/security/cve/CVE-2026-33983 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=2453220 ↗
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33983.json ↗
- https://access.redhat.com/errata/RHSA-2026:11333 ↗
- https://access.redhat.com/errata/RHSA-2026:8458 ↗
- https://access.redhat.com/errata/RHSA-2026:19033 ↗
- https://access.redhat.com/errata/RHSA-2026:8945 ↗
- https://access.redhat.com/errata/RHSA-2026:11651 ↗
- https://access.redhat.com/errata/RHSA-2026:11649 ↗
- https://access.redhat.com/errata/RHSA-2026:12388 ↗
- https://access.redhat.com/errata/RHSA-2026:12359 ↗
- https://access.redhat.com/errata/RHSA-2026:11332 ↗
- https://access.redhat.com/errata/RHSA-2026:11336 ↗
- https://access.redhat.com/errata/RHSA-2026:10709 ↗
- https://access.redhat.com/errata/RHSA-2026:9656 ↗
- https://access.redhat.com/errata/RHSA-2026:8457 ↗
- https://access.redhat.com/errata/RHSA-2026:19349 ↗