CVSS: 9.4EPSS: 2%CPEs: 7EXPL: 1CVE-2023-40181 – Integer-Underflow leading to Out-Of-Bound Read in FreeRDP
https://notcve.org/view.php?id=CVE-2023-40181
31 Aug 2023 — FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Integer-Underflow leading to Out-Of-Bound Read in the `zgfx_decompress_segment` function. In the context of `CopyMemory`, it's possible to read data beyond the transmitted packet range and likely cause a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. • https://github.com/FreeRDP/FreeRDP/blob/2252d53001d9ce8a452f0a0a5b1f5ed9db6d57f1/libfreerdp/codec/zgfx.c#L256-L261 • CWE-125: Out-of-bounds Read CWE-191: Integer Underflow (Wrap or Wraparound) •
CVSS: 9.4EPSS: 5%CPEs: 7EXPL: 1CVE-2023-39356 – Missing offset validation leading to Out-of-Bounds Read in FreeRDP
https://notcve.org/view.php?id=CVE-2023-39356
31 Aug 2023 — FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions a missing offset validation may lead to an Out Of Bound Read in the function `gdi_multi_opaque_rect`. In particular there is no code to validate if the value `multi_opaque_rect->numRectangles` is less than 45. Looping through `multi_opaque_rect->`numRectangles without proper boundary checks can lead to Out-of-Bounds Read errors which will likely lead to a crash. This issue has been ... • https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/include/freerdp/primary.h#L186-L196 • CWE-125: Out-of-bounds Read •
CVSS: 10.0EPSS: 2%CPEs: 7EXPL: 1CVE-2023-39352 – Invalid offset validation leading to Out Of Bound Write in FreeRDP
https://notcve.org/view.php?id=CVE-2023-39352
31 Aug 2023 — FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an invalid offset validation leading to Out Of Bound Write. This can be triggered when the values `rect->left` and `rect->top` are exactly equal to `surface->width` and `surface->height`. eg. `rect->left` == `surface->width` && `rect->top` == `surface->height`. In practice this should cause a crash. • https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/libfreerdp/gdi/gfx.c#L1219-L1239 • CWE-787: Out-of-bounds Write •
CVSS: 9.4EPSS: 1%CPEs: 7EXPL: 1CVE-2023-39353 – Missing offset validation leading to Out Of Bound Read in FreeRDP
https://notcve.org/view.php?id=CVE-2023-39353
31 Aug 2023 — FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to a missing offset validation leading to Out Of Bound Read. In the `libfreerdp/codec/rfx.c` file there is no offset validation in `tile->quantIdxY`, `tile->quantIdxCb`, and `tile->quantIdxCr`. As a result crafted input can lead to an out of bounds read access which in turn will cause a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. • https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/libfreerdp/codec/rfx.c#L994-L996 • CWE-125: Out-of-bounds Read •
CVSS: 7.8EPSS: 1%CPEs: 7EXPL: 1CVE-2023-39351 – FreeRDP Null Pointer Dereference leading denial of service
https://notcve.org/view.php?id=CVE-2023-39351
31 Aug 2023 — FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions of FreeRDP are subject to a Null Pointer Dereference leading a crash in the RemoteFX (rfx) handling. Inside the `rfx_process_message_tileset` function, the program allocates tiles using `rfx_allocate_tiles` for the number of numTiles. If the initialization process of tiles is not completed for various reasons, tiles will have a NULL pointer. Which may be accessed in further processing ... • https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-q9x9-cqjc-rgwq • CWE-476: NULL Pointer Dereference •
CVSS: 10.0EPSS: 1%CPEs: 3EXPL: 1CVE-2023-39355 – FreeRDP Use-After-Free in RDPGFX_CMDID_RESETGRAPHICS
https://notcve.org/view.php?id=CVE-2023-39355
31 Aug 2023 — FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Versions of FreeRDP on the 3.x release branch before beta3 are subject to a Use-After-Free in processing `RDPGFX_CMDID_RESETGRAPHICS` packets. If `context->maxPlaneSize` is 0, `context->planesBuffer` will be freed. However, without updating `context->planesBuffer`, this leads to a Use-After-Free exploit vector. In most environments this should only result in a crash. • https://github.com/FreeRDP/FreeRDP/commit/d6f9d33a7db0b346195b6a15b5b99944ba41beee • CWE-416: Use After Free •
CVSS: 7.8EPSS: 1%CPEs: 7EXPL: 1CVE-2023-39354 – FreeRDP Out-Of-Bounds Read in nsc_rle_decompress_data
https://notcve.org/view.php?id=CVE-2023-39354
31 Aug 2023 — FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Out-Of-Bounds Read in the `nsc_rle_decompress_data` function. The Out-Of-Bounds Read occurs because it processes `context->Planes` without checking if it contains data of sufficient length. Should an attacker be able to leverage this vulnerability they may be able to cause a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. • https://github.com/FreeRDP/FreeRDP/commit/cd1da25a87358eb3b5512fd259310e95b19a05ec • CWE-125: Out-of-bounds Read •
CVSS: 7.8EPSS: 3%CPEs: 7EXPL: 1CVE-2023-39350 – Incorrect offset calculation leading to denial of service in FreeRDP
https://notcve.org/view.php?id=CVE-2023-39350
31 Aug 2023 — FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. This issue affects Clients only. Integer underflow leading to DOS (e.g. abort due to `WINPR_ASSERT` with default compilation flags). When an insufficient blockLen is provided, and proper length validation is not performed, an Integer Underflow occurs, leading to a Denial of Service (DOS) vulnerability. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. • https://github.com/FreeRDP/FreeRDP/commit/e204fc8be5a372626b13f66daf2abafe71dbc2dc • CWE-191: Integer Underflow (Wrap or Wraparound) •
CVSS: 7.8EPSS: 1%CPEs: 7EXPL: 1CVE-2023-40589 – FreeRDP Global-Buffer-Overflow in ncrush_decompress
https://notcve.org/view.php?id=CVE-2023-40589
31 Aug 2023 — FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions there is a Global-Buffer-Overflow in the ncrush_decompress function. Feeding crafted input into this function can trigger the overflow which has only been shown to cause a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. • https://github.com/FreeRDP/FreeRDP/commit/16141a30f983dd6f7a6e5b0356084171942c9416 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2022-41877 – Missing input length validation in `drive` channel in FreeRDP
https://notcve.org/view.php?id=CVE-2022-41877
16 Nov 2022 — FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing input length validation in `drive` channel. A malicious server can trick a FreeRDP based client to read out of bound data and send it back to the server. This issue has been addressed in version 2.9.0 and all users are advised to upgrade. Users unable to upgrade should not use the drive redirection channel - command line options `/drive`, `+drives` or `+home-drive`. • https://github.com/FreeRDP/FreeRDP/commit/6655841cf2a00b764f855040aecb8803cfc5eaba • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-1284: Improper Validation of Specified Quantity in Input •