Headline
CVE-2023-40187: Use-After-Free in avc420_ensure_buffer, avc444_ensure_buffer
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions of the 3.x beta branch are subject to a Use-After-Free issue in the avc420_ensure_buffer and avc444_ensure_buffer functions. If the value of piDstSize[x] is 0, ppYUVDstData[x] will be freed. However, in this case ppYUVDstData[x] will not have been updated which leads to a Use-After-Free vulnerability. This issue has been addressed in version 3.0.0-beta3. Users of the 3.x beta releases are advised to upgrade. There are no known workarounds for this vulnerability.
Affected versions
>= 3.0.0-beta1, <= 3.0.0beta2
Patched versions
3.0.0-beta3
Summary
Use-After-Free in avc420_ensure_buffer, avc444_ensure_buffer
Affected
FreeRDP based clients only. FreeRDP proxy not affected as image decoding is not done by proxy (data passthrough)
Details
for (x = 0; x < 3; x++)
{
BYTE* tmp1;
BYTE* tmp2;
piDstStride[x] = piMainStride[0];
piDstSize[x] = piDstStride[x] * padDstHeight;
tmp1 = winpr_aligned_recalloc(ppYUVDstData[x], piDstSize[x], 1, 16);
if (tmp1)
ppYUVDstData[x] = tmp1;
tmp2 = winpr_aligned_recalloc(ppOldYUVDstData[x], piDstSize[x], 1, 16);
if (tmp2)
ppOldYUVDstData[x] = tmp2;
if (!tmp1 || !tmp2)
goto fail;
}
If piDstSize[x] is 0, ppYUVDstData[x] will be freed. However, without updating ppYUVDstData[x], this leads to a Use-After-Free (UAF) vulnerability.
PoC
- Send piDstSize[x] == 0
Impact
Use-After-Free leading to unexpected behavior
Asan
==73963==ERROR: AddressSanitizer: heap-use-after-free on address 0x62900000a208 at pc 0x000101dfd6a8 bp 0x000170029320 sp 0x000170029318
READ of size 4 at 0x62900000a208 thread T4
#0 0x101dfd6a4 in winpr_aligned_offset_recalloc alignment.c:202
#1 0x101dfd188 in winpr_aligned_recalloc alignment.c:75
#2 0x101292260 in avc444_ensure_buffer+0x34c (libfreerdp3.3.0.0.dylib:arm64+0x66260) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#3 0x101292b90 in avc444_process_rects+0x288 (libfreerdp3.3.0.0.dylib:arm64+0x66b90) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#4 0x1012928c4 in avc444_decompress+0x228 (libfreerdp3.3.0.0.dylib:arm64+0x668c4) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#5 0x10138d8d8 in gdi_SurfaceCommand_AVC444+0x94c (libfreerdp3.3.0.0.dylib:arm64+0x1618d8) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#6 0x1013825e8 in gdi_SurfaceCommand+0x5b0 (libfreerdp3.3.0.0.dylib:arm64+0x1565e8) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#7 0x10055c238 in rdpgfx_decode_AVC444+0xa0c (libfreerdp-client3.3.0.0.dylib:arm64+0xa8238) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#8 0x10055b0bc in rdpgfx_decode+0x178 (libfreerdp-client3.3.0.0.dylib:arm64+0xa70bc) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#9 0x100546a20 in rdpgfx_recv_wire_to_surface_1_pdu+0x14ec (libfreerdp-client3.3.0.0.dylib:arm64+0x92a20) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#10 0x10054427c in rdpgfx_recv_pdu+0x424 (libfreerdp-client3.3.0.0.dylib:arm64+0x9027c) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#11 0x1005433b0 in rdpgfx_on_data_received+0x444 (libfreerdp-client3.3.0.0.dylib:arm64+0x8f3b0) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#12 0x1004c68a4 in dvcman_call_on_receive+0x164 (libfreerdp-client3.3.0.0.dylib:arm64+0x128a4) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#13 0x1004c6710 in dvcman_receive_channel_data+0x440 (libfreerdp-client3.3.0.0.dylib:arm64+0x12710) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#14 0x1004c30f8 in drdynvc_process_data+0x2c8 (libfreerdp-client3.3.0.0.dylib:arm64+0xf0f8) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#15 0x1004c136c in drdynvc_order_recv+0x334 (libfreerdp-client3.3.0.0.dylib:arm64+0xd36c) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#16 0x1004c0db0 in drdynvc_virtual_channel_event_data_received+0x498 (libfreerdp-client3.3.0.0.dylib:arm64+0xcdb0) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#17 0x1004bfa98 in drdynvc_virtual_channel_open_event_ex+0x1ac (libfreerdp-client3.3.0.0.dylib:arm64+0xba98) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#18 0x1014839ec in freerdp_channels_data+0x5cc (libfreerdp3.3.0.0.dylib:arm64+0x2579ec) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#19 0x1015352a0 in freerdp_channel_process+0x6e0 (libfreerdp3.3.0.0.dylib:arm64+0x3092a0) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#20 0x1014e5600 in rdp_recv_tpkt_pdu+0x11e8 (libfreerdp3.3.0.0.dylib:arm64+0x2b9600) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#21 0x1014e43c0 in rdp_recv_pdu+0x34 (libfreerdp3.3.0.0.dylib:arm64+0x2b83c0) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#22 0x1014dfc28 in rdp_recv_callback_int+0x1408 (libfreerdp3.3.0.0.dylib:arm64+0x2b3c28) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#23 0x1014de750 in rdp_recv_callback+0x1d8 (libfreerdp3.3.0.0.dylib:arm64+0x2b2750) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#24 0x101504f04 in transport_check_fds+0x51c (libfreerdp3.3.0.0.dylib:arm64+0x2d8f04) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#25 0x1014e0530 in rdp_check_fds+0x170 (libfreerdp3.3.0.0.dylib:arm64+0x2b4530) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#26 0x10147b1a8 in freerdp_check_fds+0x1ac (libfreerdp3.3.0.0.dylib:arm64+0x24f1a8) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#27 0x10147b878 in freerdp_check_event_handles+0x70 (libfreerdp3.3.0.0.dylib:arm64+0x24f878) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#28 0x1000d7700 in mac_client_thread+0x5a4 (MacFreeRDP:arm64+0x13700) (BuildId: 648033a131eb3f0f9702f5da3e9b172432000000200000000100000000000d00)
#29 0x101d9d4ac in thread_launcher thread.c:520
#30 0x1a20cbfa4 in _pthread_start+0x90 (libsystem_pthread.dylib:arm64+0x6fa4) (BuildId: 46d35233a0513f4fbba4ba56dddc4d1a32000000200000000100000000040d00)
#31 0x6a050001a20c6d9c (<unknown module>)
0x62900000a208 is located 8 bytes inside of 18472-byte region [0x62900000a200,0x62900000ea28)
freed by thread T4 here:
#0 0x1023256e4 in wrap_free+0x90 (libclang_rt.asan_osx_dynamic.dylib:arm64+0x516e4) (BuildId: 4947f3677e4435f39b5765e7dbc19bf732000000200000000100000000000b00)
#1 0x101dfdb50 in winpr_aligned_free alignment.c:264
#2 0x101dfd96c in winpr_aligned_offset_recalloc alignment.c:227
#3 0x101dfd188 in winpr_aligned_recalloc alignment.c:75
#4 0x101292260 in avc444_ensure_buffer+0x34c (libfreerdp3.3.0.0.dylib:arm64+0x66260) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#5 0x101292b90 in avc444_process_rects+0x288 (libfreerdp3.3.0.0.dylib:arm64+0x66b90) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#6 0x1012928c4 in avc444_decompress+0x228 (libfreerdp3.3.0.0.dylib:arm64+0x668c4) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#7 0x10138d8d8 in gdi_SurfaceCommand_AVC444+0x94c (libfreerdp3.3.0.0.dylib:arm64+0x1618d8) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#8 0x1013825e8 in gdi_SurfaceCommand+0x5b0 (libfreerdp3.3.0.0.dylib:arm64+0x1565e8) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#9 0x10055c238 in rdpgfx_decode_AVC444+0xa0c (libfreerdp-client3.3.0.0.dylib:arm64+0xa8238) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#10 0x10055b0bc in rdpgfx_decode+0x178 (libfreerdp-client3.3.0.0.dylib:arm64+0xa70bc) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#11 0x100546a20 in rdpgfx_recv_wire_to_surface_1_pdu+0x14ec (libfreerdp-client3.3.0.0.dylib:arm64+0x92a20) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#12 0x10054427c in rdpgfx_recv_pdu+0x424 (libfreerdp-client3.3.0.0.dylib:arm64+0x9027c) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#13 0x1005433b0 in rdpgfx_on_data_received+0x444 (libfreerdp-client3.3.0.0.dylib:arm64+0x8f3b0) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#14 0x1004c68a4 in dvcman_call_on_receive+0x164 (libfreerdp-client3.3.0.0.dylib:arm64+0x128a4) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#15 0x1004c6710 in dvcman_receive_channel_data+0x440 (libfreerdp-client3.3.0.0.dylib:arm64+0x12710) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#16 0x1004c30f8 in drdynvc_process_data+0x2c8 (libfreerdp-client3.3.0.0.dylib:arm64+0xf0f8) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#17 0x1004c136c in drdynvc_order_recv+0x334 (libfreerdp-client3.3.0.0.dylib:arm64+0xd36c) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#18 0x1004c0db0 in drdynvc_virtual_channel_event_data_received+0x498 (libfreerdp-client3.3.0.0.dylib:arm64+0xcdb0) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#19 0x1004bfa98 in drdynvc_virtual_channel_open_event_ex+0x1ac (libfreerdp-client3.3.0.0.dylib:arm64+0xba98) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#20 0x1014839ec in freerdp_channels_data+0x5cc (libfreerdp3.3.0.0.dylib:arm64+0x2579ec) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#21 0x1015352a0 in freerdp_channel_process+0x6e0 (libfreerdp3.3.0.0.dylib:arm64+0x3092a0) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#22 0x1014e5600 in rdp_recv_tpkt_pdu+0x11e8 (libfreerdp3.3.0.0.dylib:arm64+0x2b9600) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#23 0x1014e43c0 in rdp_recv_pdu+0x34 (libfreerdp3.3.0.0.dylib:arm64+0x2b83c0) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#24 0x1014dfc28 in rdp_recv_callback_int+0x1408 (libfreerdp3.3.0.0.dylib:arm64+0x2b3c28) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#25 0x1014de750 in rdp_recv_callback+0x1d8 (libfreerdp3.3.0.0.dylib:arm64+0x2b2750) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#26 0x101504f04 in transport_check_fds+0x51c (libfreerdp3.3.0.0.dylib:arm64+0x2d8f04) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#27 0x1014e0530 in rdp_check_fds+0x170 (libfreerdp3.3.0.0.dylib:arm64+0x2b4530) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#28 0x10147b1a8 in freerdp_check_fds+0x1ac (libfreerdp3.3.0.0.dylib:arm64+0x24f1a8) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#29 0x10147b878 in freerdp_check_event_handles+0x70 (libfreerdp3.3.0.0.dylib:arm64+0x24f878) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
previously allocated by thread T4 here:
#0 0x1023255b0 in wrap_malloc+0x8c (libclang_rt.asan_osx_dynamic.dylib:arm64+0x515b0) (BuildId: 4947f3677e4435f39b5765e7dbc19bf732000000200000000100000000000b00)
#1 0x101dfcf18 in winpr_aligned_offset_malloc alignment.c:114
#2 0x101dfd5b0 in winpr_aligned_offset_recalloc alignment.c:189
#3 0x101dfd188 in winpr_aligned_recalloc alignment.c:75
#4 0x101292260 in avc444_ensure_buffer+0x34c (libfreerdp3.3.0.0.dylib:arm64+0x66260) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#5 0x101292b90 in avc444_process_rects+0x288 (libfreerdp3.3.0.0.dylib:arm64+0x66b90) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#6 0x101292870 in avc444_decompress+0x1d4 (libfreerdp3.3.0.0.dylib:arm64+0x66870) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#7 0x10138d8d8 in gdi_SurfaceCommand_AVC444+0x94c (libfreerdp3.3.0.0.dylib:arm64+0x1618d8) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#8 0x1013825e8 in gdi_SurfaceCommand+0x5b0 (libfreerdp3.3.0.0.dylib:arm64+0x1565e8) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#9 0x10055c238 in rdpgfx_decode_AVC444+0xa0c (libfreerdp-client3.3.0.0.dylib:arm64+0xa8238) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#10 0x10055b0bc in rdpgfx_decode+0x178 (libfreerdp-client3.3.0.0.dylib:arm64+0xa70bc) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#11 0x100546a20 in rdpgfx_recv_wire_to_surface_1_pdu+0x14ec (libfreerdp-client3.3.0.0.dylib:arm64+0x92a20) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#12 0x10054427c in rdpgfx_recv_pdu+0x424 (libfreerdp-client3.3.0.0.dylib:arm64+0x9027c) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#13 0x1005433b0 in rdpgfx_on_data_received+0x444 (libfreerdp-client3.3.0.0.dylib:arm64+0x8f3b0) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#14 0x1004c68a4 in dvcman_call_on_receive+0x164 (libfreerdp-client3.3.0.0.dylib:arm64+0x128a4) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#15 0x1004c6694 in dvcman_receive_channel_data+0x3c4 (libfreerdp-client3.3.0.0.dylib:arm64+0x12694) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#16 0x1004c30f8 in drdynvc_process_data+0x2c8 (libfreerdp-client3.3.0.0.dylib:arm64+0xf0f8) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#17 0x1004c136c in drdynvc_order_recv+0x334 (libfreerdp-client3.3.0.0.dylib:arm64+0xd36c) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#18 0x1004c0db0 in drdynvc_virtual_channel_event_data_received+0x498 (libfreerdp-client3.3.0.0.dylib:arm64+0xcdb0) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#19 0x1004bfa98 in drdynvc_virtual_channel_open_event_ex+0x1ac (libfreerdp-client3.3.0.0.dylib:arm64+0xba98) (BuildId: 81736ad6ceca33b393c7b6a3c46ded1f32000000200000000100000000000d00)
#20 0x1014839ec in freerdp_channels_data+0x5cc (libfreerdp3.3.0.0.dylib:arm64+0x2579ec) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#21 0x1015352a0 in freerdp_channel_process+0x6e0 (libfreerdp3.3.0.0.dylib:arm64+0x3092a0) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#22 0x1014e5600 in rdp_recv_tpkt_pdu+0x11e8 (libfreerdp3.3.0.0.dylib:arm64+0x2b9600) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#23 0x1014e43c0 in rdp_recv_pdu+0x34 (libfreerdp3.3.0.0.dylib:arm64+0x2b83c0) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#24 0x1014dfc28 in rdp_recv_callback_int+0x1408 (libfreerdp3.3.0.0.dylib:arm64+0x2b3c28) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#25 0x1014de750 in rdp_recv_callback+0x1d8 (libfreerdp3.3.0.0.dylib:arm64+0x2b2750) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#26 0x101504f04 in transport_check_fds+0x51c (libfreerdp3.3.0.0.dylib:arm64+0x2d8f04) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#27 0x1014e0530 in rdp_check_fds+0x170 (libfreerdp3.3.0.0.dylib:arm64+0x2b4530) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#28 0x10147b1a8 in freerdp_check_fds+0x1ac (libfreerdp3.3.0.0.dylib:arm64+0x24f1a8) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
#29 0x10147b878 in freerdp_check_event_handles+0x70 (libfreerdp3.3.0.0.dylib:arm64+0x24f878) (BuildId: d53c29501ead3efda935d2a95dab72b332000000200000000100000000000d00)
Thread T4 created by T0 here:
#0 0x10231e91c in wrap_pthread_create+0x50 (libclang_rt.asan_osx_dynamic.dylib:arm64+0x4a91c) (BuildId: 4947f3677e4435f39b5765e7dbc19bf732000000200000000100000000000b00)
#1 0x101d9a52c in winpr_StartThread thread.c:568
#2 0x101d99c00 in CreateThread thread.c:650
#3 0x1000d6e64 in -[MRDPView rdpStart:]+0x964 (MacFreeRDP:arm64+0x12e64) (BuildId: 648033a131eb3f0f9702f5da3e9b172432000000200000000100000000000d00)
#4 0x1000d62b4 in mfreerdp_client_start+0x488 (MacFreeRDP:arm64+0x122b4) (BuildId: 648033a131eb3f0f9702f5da3e9b172432000000200000000100000000000d00)
#5 0x1000ca18c in freerdp_client_start+0x190 (MacFreeRDP:arm64+0x618c) (BuildId: 648033a131eb3f0f9702f5da3e9b172432000000200000000100000000000d00)
#6 0x10000678c in -[AppDelegate applicationDidFinishLaunching:]+0x53c (MacFreeRDP:arm64+0x10000678c) (BuildId: c0debf5af29834acb3c97ff2be5d5c4932000000200000000100000000000d00)
#7 0x1a219f17c in __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__+0x90 (CoreFoundation:arm64+0x7417c) (BuildId: 203e44018c2e3157a24b92f52551d43e32000000200000000100000000040d00)
#8 0xeb690001a223aee8 (<unknown module>)
#9 0x76370001a223ae30 (<unknown module>)
#10 0x1d138001a21704c8 (<unknown module>)
#11 0x677b8001a30ce8f0 (<unknown module>)
#12 0x52530001a53d1154 (<unknown module>)
#13 0xd7578001a53d0f04 (<unknown module>)
#14 0xe9100001a53cefa0 (<unknown module>)
#15 0xb6280001a53ceb9c (<unknown module>)
#16 0xf3510001a30f8b60 (<unknown module>)
#17 0x3f298001a30f89c0 (<unknown module>)
#18 0xc93d0001a84d1514 (<unknown module>)
#19 0xb5018001a84d0e40 (<unknown module>)
#20 0xba448001a84c9f14 (<unknown module>)
#21 0x85e8001aba02b40 (<unknown module>)
#22 0x3d738001a53ca044 (<unknown module>)
#23 0xfb5d8001a53c8edc (<unknown module>)
#24 0xfb7d0001a53bd340 (<unknown module>)
#25 0x450f8001a5394790 (<unknown module>)
#26 0x6a74000100006020 (<unknown module>)
#27 0x1a1d73f24 (<unknown module>)
#28 0x56347ffffffffffc (<unknown module>)
SUMMARY: AddressSanitizer: heap-use-after-free alignment.c:202 in winpr_aligned_offset_recalloc
Shadow bytes around the buggy address:
0x629000009f80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x62900000a000: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x62900000a080: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x62900000a100: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x62900000a180: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x62900000a200: fd[fd]fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x62900000a280: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x62900000a300: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x62900000a380: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x62900000a400: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x62900000a480: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cbRelated news
Gentoo Linux Security Advisory 202401-16
Gentoo Linux Security Advisory 202401-16 - Multiple vulnerabilities have been discovered in FreeRDP, the worst of which could result in code execution. Versions greater than or equal to 2.11.0 are affected.