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8d184e5504
Patches mostly backported with the basis of the work of Ubuntu Security
team. See [1].
Fix the following vulnerabilities:
- CVE-2024-32661:
FreeRDP is a free implementation of the Remote Desktop Protocol.
FreeRDP based clients prior to version 3.5.1 are vulnerable to a
possible `NULL` access and crash. Version 3.5.1 contains a patch for
the issue. No known workarounds are available.
For more information, see:
- https://www.cve.org/CVERecord?id=CVE-2024-32661
- CVE-2026-23530:
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior
to version 3.21.0,`freerdp_bitmap_decompress_planar` does not validate
`nSrcWidth`/`nSrcHeight` against `planar->maxWidth`/`maxHeight` before
RLE decode. A malicious server can trigger a client‑side heap buffer
overflow, causing a crash (DoS) and potential heap corruption with
code‑execution risk depending on allocator behavior and surrounding
heap layout. Version 3.21.0 contains a patch for the issue.
For more information, see:
- https://www.cve.org/CVERecord?id=CVE-2026-23530
- CVE-2026-23531:
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior
to version 3.21.0, in ClearCodec, when `glyphData` is present,
`clear_decompress` calls `freerdp_image_copy_no_overlap` without
validating the destination rectangle, allowing an out-of-bounds
read/write via crafted RDPGFX surface updates. A malicious server can
trigger a client‑side heap buffer overflow, causing a crash (DoS) and
potential heap corruption with code‑execution risk depending on
allocator behavior and surrounding heap layout. Version 3.21.0
contains a patch for the issue.
For more information, see:
- https://www.cve.org/CVERecord?id=CVE-2026-23531
- CVE-2026-23532:
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior
to version 3.21.0, a client-side heap buffer overflow occurs in the
FreeRDP client’s `gdi_SurfaceToSurface` path due to a mismatch between
destination rectangle clamping and the actual copy size. A malicious
server can trigger a client‑side heap buffer overflow, causing a crash
(DoS) and potential heap corruption with code‑execution risk depending
on allocator behavior and surrounding heap layout. Version 3.21.0
contains a patch for the issue.
For more information, see:
- https://www.cve.org/CVERecord?id=CVE-2026-23532
- CVE-2026-23533:
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior
to version 3.21.0, a client-side heap buffer overflow occurs in the
RDPGFX ClearCodec decode path when maliciously crafted residual data
causes out-of-bounds writes during color output. A malicious server
can trigger a client‑side heap buffer overflow, causing a crash (DoS)
and potential heap corruption with code‑execution risk depending on
allocator behavior and surrounding heap layout. Version 3.21.0
contains a patch for the issue.
For more information, see:
- https://www.cve.org/CVERecord?id=CVE-2026-23533
- CVE-2026-23534:
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior
to version 3.21.0, a client-side heap buffer overflow occurs in the
ClearCodec bands decode path when crafted band coordinates allow
writes past the end of the destination surface buffer. A malicious
server can trigger a client‑side heap buffer overflow, causing a crash
(DoS) and potential heap corruption with code‑execution risk depending
on allocator behavior and surrounding heap layout. Version 3.21.0
contains a patch for the issue.
For more information, see:
- https://www.cve.org/CVERecord?id=CVE-2026-23534
- CVE-2026-23948:
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior
to 3.22.0, a NULL pointer dereference vulnerability in
rdp_write_logon_info_v2() allows a malicious RDP server to crash
FreeRDP proxy by sending a specially crafted LogonInfoV2 PDU with
cbDomain=0 or cbUserName=0. This vulnerability is fixed in 3.22.0.
For more information, see:
- https://www.cve.org/CVERecord?id=CVE-2026-23948
- CVE-2026-24675:
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior
to 3.22.0, urb_select_interface can free the device's MS config on
error but later code still dereferences it, leading to a use after
free in libusb_udev_select_interface. This vulnerability is fixed in
3.22.0.
For more information, see:
- https://www.cve.org/CVERecord?id=CVE-2026-24675
- CVE-2026-24676:
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior
to 3.22.0, AUDIN format renegotiation frees the active format list
while the capture thread continues using audin->format, leading to a
use after free in audio_format_compatible. This vulnerability is fixed
in 3.22.0.
For more information, see:
- https://www.cve.org/CVERecord?id=CVE-2026-24676
- CVE-2026-24679:
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior
to 3.22.0, The URBDRC client uses server-supplied interface numbers as
array indices without bounds checks, causing an out-of-bounds read in
libusb_udev_select_interface. This vulnerability is fixed in 3.22.0.
For more information, see:
- https://www.cve.org/CVERecord?id=CVE-2026-24679
- CVE-2026-24681:
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior
to 3.22.0, aAsynchronous bulk transfer completions can use a freed
channel callback after URBDRC channel close, leading to a use after
free in urb_write_completion. This vulnerability is fixed in 3.22.0.
For more information, see:
- https://www.cve.org/CVERecord?id=CVE-2026-24681
- CVE-2026-24682:
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior
to 3.22.0, audin_server_recv_formats frees an incorrect number of
audio formats on parse failure (i + i), leading to out-of-bounds
access in audio_formats_free. This vulnerability is fixed in 3.22.0.
For more information, see:
- https://www.cve.org/CVERecord?id=CVE-2026-24682
- CVE-2026-24683:
FreeRDP is a free implementation of the Remote Desktop Protocol.
ainput_send_input_event caches channel_callback in a local variable
and later uses it without synchronization; a concurrent channel close
can free or reinitialize the callback, leading to a use after free.
Prior to 3.22.0, This vulnerability is fixed in 3.22.0.
For more information, see:
- https://www.cve.org/CVERecord?id=CVE-2026-24683
[1] https://launchpad.net/ubuntu/+archive/primary/+sourcefiles/freerdp2/2.6.1+dfsg1-3ubuntu2.10/freerdp2_2.6.1+dfsg1-3ubuntu2.10.debian.tar.xz
Signed-off-by: Thomas Perale <thomas.perale@mind.be>
Signed-off-by: Julien Olivain <ju.o@free.fr>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at https://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches