Upstream information
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, a client-side heap buffer overflow occurs in the FreeRDP client's AVC420/AVC444 YUV-to-RGB conversion path due to missing horizontal bounds validation of H.264 metablock regionRects coordinates. In yuv.c, the clamp() function (line 347) only validates top/bottom against the surface/YUV height, but never checks left/right against the surface width. When avc420_yuv_to_rgb (line 67) computes destination and source pointers using rect->left, it performs unchecked pointer arithmetic that can reach far beyond the allocated surface buffer. A malicious server sends a WIRE_TO_SURFACE_PDU_1 with AVC420 codec containing a regionRects entry where left greatly exceeds the surface width (e.g., left=60000 on a 128px surface). The H.264 bitstream decodes successfully, then yuv420_process_work_callback calls avc420_yuv_to_rgb which computes pDstPoint = pDstData + rect->top * nDstStep + rect->left * 4, writing 16-byte SSE vectors 1888+ bytes past the allocated heap region. This vulnerability is fixed in 3.24.0.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (GitHub) | National Vulnerability Database | SUSE |
|---|---|---|---|
| Base Score | 5.3 | 8.2 | 5.3 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| Attack Vector | Network | Network | Network |
| Attack Complexity | Low | Low | Low |
| Privileges Required | None | None | None |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality Impact | None | None | None |
| Integrity Impact | None | Low | None |
| Availability Impact | Low | High | Low |
| CVSSv3 Version | 3.1 | 3.1 | 3.1 |
| CVSS detail | SUSE |
|---|---|
| Base Score | 6.9 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Attack Requirements | None |
| Privileges Required | None |
| User Interaction | None |
| Vulnerable System Confidentiality Impact | None |
| Vulnerable System Integrity Impact | None |
| Vulnerable System Availability Impact | Low |
| Subsequent System Confidentiality Impact | None |
| Subsequent System Integrity Impact | None |
| Subsequent System Availability Impact | None |
| CVSSv4 Version | 4.0 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP7 | freerdp | Affected |
| SUSE Linux Enterprise Desktop 15 SP7 | freerdp2 | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | freerdp | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | freerdp2 | Not affected |
| SUSE Linux Enterprise Server 15 SP7 | freerdp | Affected |
| SUSE Linux Enterprise Server 15 SP7 | freerdp2 | Not affected |
| SUSE Linux Enterprise Server 16.0 | freerdp | Affected |
| SUSE Linux Enterprise Server 16.1 | freerdp | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | freerdp | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | freerdp2 | Not affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | freerdp | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | freerdp | Affected |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | freerdp | Affected |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | freerdp2 | Not affected |
| openSUSE Leap 15.6 | freerdp | Not affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise Server 12 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | freerdp | Not affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | freerdp | Not affected |
| SUSE Linux Enterprise Server 15 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Server 15 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | freerdp | Not affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise Desktop 12 SP2 | freerdp | Not affected |
| SUSE Linux Enterprise Desktop 12 SP3 | freerdp | Not affected |
| SUSE Linux Enterprise Desktop 12 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Desktop 15 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Desktop 15 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Desktop 15 SP6 | freerdp | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | freerdp | Not affected |
| SUSE Linux Enterprise Server 12 SP2 | freerdp | Not affected |
| SUSE Linux Enterprise Server 12 SP3 | freerdp | Not affected |
| SUSE Linux Enterprise Server 12 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Server 15 SP6 | freerdp | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | freerdp | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | freerdp | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP2 | freerdp | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | freerdp | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Workstation Extension 12 SP2 | freerdp | Not affected |
| SUSE Linux Enterprise Workstation Extension 12 SP3 | freerdp | Not affected |
| SUSE Linux Enterprise Workstation Extension 12 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Workstation Extension 12 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Workstation Extension 15 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Workstation Extension 15 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Workstation Extension 15 SP6 | freerdp | Not affected |
| openSUSE Leap 15.4 | freerdp | Not affected |
| openSUSE Leap 15.5 | freerdp | Not affected |
SUSE Timeline for this CVE
CVE page created: Fri Mar 13 22:02:24 2026CVE page last modified: Wed Mar 18 02:02:38 2026