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FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, an unvalidated auth_length field read from the network triggers a WINPR_ASSERT() failure in rts_read_auth_verifier_no_checks(), causing any FreeRDP client connecting through a malicious RDP Gateway to crash with SIGABRT. This is a pre-authentication denial of service affecting all FreeRDP clients using RPC-over-HTTP gateway transport. The assertion is active in default release builds (WITH_VERBOSE_WINPR_ASSERT=ON). This issue has been patched in version 3.24.2.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade freerdp | Apr 1, 2026 | Mar 30, 2026 |
| Amazon Linux Ami 2 | — | Upgrade freerdpUpgrade libwinpr-develUpgrade freerdp-debuginfoUpgrade freerdp-libsUpgrade freerdp-develUpgrade libwinpr | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade freerdp-develUpgrade freerdp-debuginfoUpgrade libwinpr-debuginfoUpgrade freerdp-debugsourceUpgrade libwinpr-develUpgrade freerdp-serverUpgrade freerdp-server-debuginfoUpgrade freerdp-libsUpgrade libwinprUpgrade freerdpUpgrade freerdp-libs-debuginfo | Apr 14, 2026 | Mar 30, 2026 |
| Debian | — | Upgrade freerdp3 | Jul 23, 2026 | Jul 23, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Mar 30, 2026 |
| Ubuntu | — | Upgrade freerdp-x11Upgrade libfreerdp3-3Upgrade freerdp3-x11 | Jul 21, 2026 | Jul 20, 2026 |
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