Public bug reported:
On Ubuntu 24.04 after upgrading from 3.5.1+dfsg1-0ubuntu1.2 to
3.5.1+dfsg1-0ubuntu1.5, remmina disconnects from sessions ~1 second
after connecting to an xorgxrdp server.
Here is a typical debug log:
[08:06:24:625] [2989679:002da26d] [WARN][com.freerdp.core.nego] -
[nego_enable_aad]: This build does not support AAD security, disabling.
[08:06:24:823] [2989679:002da26d] [INFO][com.winpr.timezone] -
[winpr_detect_windows_time_zone]: tzid: America/Toronto
[08:06:24:877] [2989679:002da26d] [WARN][com.freerdp.core.connection] -
[rdp_client_connect_auto_detect]: messageChannelId == 0
[08:06:24:886] [2989679:002da26d] [ERROR][com.freerdp.core.license] -
[license_read_binary_blob_data]: license binary blob::type expected BB_UNKNOWN,
got BB_ERROR_BLOB
[08:06:24:886] [2989679:002da26d] [WARN][com.freerdp.core.license] -
[license_read_binary_blob_data]: license binary blob::type BB_ERROR_BLOB,
length=0, skipping.
[08:06:24:935] [2989679:002da26d] [INFO][com.freerdp.gdi] - [gdi_init_ex]:
Local framebuffer format PIXEL_FORMAT_BGRA32
[08:06:24:935] [2989679:002da26d] [INFO][com.freerdp.gdi] - [gdi_init_ex]:
Remote framebuffer format PIXEL_FORMAT_BGRA32
[08:06:24:936] [2989679:002da26d] [INFO][com.freerdp.channels.rdpsnd.client] -
[rdpsnd_load_device_plugin]: [static] Loaded fake backend for rdpsnd
[08:06:24:936] [2989679:002da26d] [INFO][com.freerdp.channels.drdynvc.client] -
[dvcman_load_addin]: Loading Dynamic Virtual Channel disp
[08:06:24:936] [2989679:002da26d] [INFO][com.freerdp.channels.drdynvc.client] -
[dvcman_load_addin]: Loading Dynamic Virtual Channel rdpgfx
[08:06:24:936] [2989679:002da26d] [INFO][com.freerdp.channels.drdynvc.client] -
[dvcman_load_addin]: Loading Dynamic Virtual Channel ainput
[08:06:24:937] [2989679:002da26d] [INFO][com.freerdp.channels.drdynvc.client] -
[dvcman_load_addin]: Loading Dynamic Virtual Channel rdpsnd
[08:06:25:225] [2989679:002da27c] [WARN][com.freerdp.channels.drdynvc.client] -
[check_open_close_receive]: {Microsoft::Windows::RDS::DisplayControl:1}
OnOpen=(nil), OnClose=0x766f4c526c80
[08:06:25:631] [2989679:002da26d] [WARN][com.freerdp.core.rdp] -
[rdp_handle_sc_flags][0x63540a5de370]:
[CONNECTION_STATE_FINALIZATION_CLIENT_SYNC] unexpected server message, expected
flag FINALIZE_SC_SYNCHRONIZE_PDU [0x00000001] [have NO_FLAG_SET [0x00000000]]
[08:06:25:632] [2989679:002da26d] [WARN][com.freerdp.core.rdp] -
[rdp_handle_sc_flags][0x63540a5de370]:
[CONNECTION_STATE_FINALIZATION_CLIENT_SYNC] unexpected server message, expected
flag FINALIZE_SC_SYNCHRONIZE_PDU [0x00000001] [have NO_FLAG_SET [0x00000000]]
[08:06:25:667] [2989679:002da26d] [WARN][com.freerdp.core.rdp] -
[rdp_handle_sc_flags][0x63540a5de370]:
[CONNECTION_STATE_FINALIZATION_CLIENT_SYNC] unexpected server message, expected
flag FINALIZE_SC_SYNCHRONIZE_PDU [0x00000001] [have NO_FLAG_SET [0x00000000]]
[08:06:25:744] [2989679:002da26d] [ERROR][com.freerdp.gdi] -
[gdi_Bitmap_Decompress]: planar_decompress failed
[08:06:25:744] [2989679:002da26d] [ERROR][com.freerdp.gdi] -
[gdi_bitmap_update]: bmp->Decompress failed
[08:06:25:744] [2989679:002da26d] [ERROR][com.freerdp.core.update] -
[update_recv]: UPDATE_TYPE Bitmap [1] failed
[08:06:25:744] [2989679:002da26d] [ERROR][com.freerdp.core.rdp] -
[rdp_recv_data_pdu][0x63540a5de370]: DATA_PDU_TYPE_UPDATE - update_recv() failed
[08:06:25:744] [2989679:002da26d] [ERROR][com.freerdp.core.rdp] -
[rdp_recv_callback_int][0x63540a5de370]: CONNECTION_STATE_ACTIVE status
STATE_RUN_FAILED [-1]
[08:06:25:744] [2989679:002da26d] [ERROR][com.freerdp.core.transport] -
[transport_check_fds]: transport_check_fds: transport->ReceiveCallback() -
STATE_RUN_FAILED [-1]
[08:06:25:744] [2989679:002da26d] [ERROR][com.freerdp.core] -
[freerdp_check_event_handles]: freerdp_check_fds() failed - 0
Could not check FreeRDP file descriptor
Tunnel yes found at idx = 0
[08:06:25:748] [2989679:002da27c] [WARN][com.freerdp.channels.drdynvc.client] -
[check_open_close_receive]: {Microsoft::Windows::RDS::DisplayControl:1}
OnOpen=(nil), OnClose=0x766f4c526c80
[08:06:25:751] [2989679:002d9e6f] [ERROR][com.freerdp.core] -
[freerdp_abort_connect_context]: ERRCONNECT_CONNECT_CANCELLED [0x0002000B]
Downgrading back to 1.2 fixes the problem. This appears to be a
regression other than the one fixed between 1.4 and 1.5.
** Affects: freerdp3 (Ubuntu)
Importance: Undecided
Status: New
** CVE added: https://cve.org/CVERecord?id=CVE-2026-27951
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https://bugs.launchpad.net/bugs/2146311
Title:
freerdp3 disconnect regression in 3.5.1+dfsg1-0ubuntu1.5 versus 1.2
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