Bug 2519824 (CVE-2026-55194)
| Summary: | CVE-2026-55194 FreeRDP: FreeRDP: Heap-buffer-overflow allows arbitrary code execution via crafted RPC response | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | rhel-process-autobot, watson-tool-maintainers |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in FreeRDP. A remote attacker, specifically a malicious TS Gateway, can exploit a heap-buffer-overflow vulnerability by sending a specially crafted Remote Desktop Protocol (RDP) response. This occurs because the client incorrectly uses a smaller `alloc_hint` value instead of the actual `StubLength` for buffer capacity during response reassembly. This allows attacker-controlled data to be written beyond the intended buffer, leading to a client crash and potentially enabling arbitrary code execution.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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Description
OSIDB Bzimport
2026-08-19 18:08:31 UTC
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2026:61379 https://access.redhat.com/errata/RHSA-2026:61379 This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2026:61378 https://access.redhat.com/errata/RHSA-2026:61378 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2026:62571 https://access.redhat.com/errata/RHSA-2026:62571 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Via RHSA-2026:65855 https://access.redhat.com/errata/RHSA-2026:65855 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Via RHSA-2026:66281 https://access.redhat.com/errata/RHSA-2026:66281 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Red Hat Enterprise Linux 8.8 Telecommunications Update Service Via RHSA-2026:66282 https://access.redhat.com/errata/RHSA-2026:66282 This issue has been addressed in the following products: Red Hat Enterprise Linux 10.0 Extended Update Support Via RHSA-2026:68706 https://access.redhat.com/errata/RHSA-2026:68706 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Extended Lifecycle Support Via RHSA-2026:68707 https://access.redhat.com/errata/RHSA-2026:68707 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2026:71388 https://access.redhat.com/errata/RHSA-2026:71388 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Via RHSA-2026:71390 https://access.redhat.com/errata/RHSA-2026:71390 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.6 Extended Update Support Via RHSA-2026:71387 https://access.redhat.com/errata/RHSA-2026:71387 |