Bug 2499222 - CVE-2026-57156 freerdp2: FreeRDP: Arbitrary code execution or denial of service via integer overflow in RDP message processing [epel-all]
Summary: CVE-2026-57156 freerdp2: FreeRDP: Arbitrary code execution or denial of servi...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: freerdp2
Version: epel10
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Neal Gompa
QA Contact:
URL:
Whiteboard: {"flaws": ["961e0a5a-1ee6-415c-8ad1-f...
Depends On:
Blocks: CVE-2026-57156
TreeView+ depends on / blocked
 
Reported: 2026-07-10 21:13 UTC by Jon Moroney
Modified: 2026-07-13 11:24 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-07-13 11:24:23 UTC
Type: ---
Embargoed:


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Description Jon Moroney 2026-07-10 21:13:45 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0 on 32-bit builds, FreeRDP clients contain an integer overflow in update_read_delta_points in libfreerdp/core/orders.c when multiplying an attacker-controlled point count by sizeof(DELTA_POINT), allowing a malicious RDP peer to allocate an undersized heap buffer and then write beyond it during initialization. This issue is fixed in version 3.28.0.

Comment 1 Ondrej Holy 2026-07-13 11:24:23 UTC
The 2.x implementation of update_read_delta_points() does not perform internal allocation and does not contain the vulnerable code pattern.


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