Added check to make sure: HighBit < BitsAllocated.
authorJoerg Riesmeier <dicom@jriesmeier.com>
Wed, 19 Feb 2025 21:30:57 +0000 (22:30 +0100)
committerÉtienne Mollier <emollier@debian.org>
Wed, 19 Feb 2025 21:30:57 +0000 (22:30 +0100)
commitea62753f11ff79ed001b79b218681af8f7f8fb8e
tree0527dd715d1267cdaefade3809aad74bc1b4db88
parent4dc13642b17a22d3831b0dea7b329380b937af3d
Added check to make sure: HighBit < BitsAllocated.

Forwarded: https://git.dcmtk.org/?p=dcmtk.git;a=commit;h=03e851b0586d05057c3268988e180ffb426b2e03
Bug-Debian: https://bugs.debian.org/1093047
Reviewed-By: Étienne Mollier <emollier@debian.org>
Last-Update: 2025-01-18

Added check to the image preprocessing to make sure that the value of
HighBit is always less than the value of BitsAllocated. Before, this
missing check could lead to memory corruption if an invalid combination
of values was retrieved from a malformed DICOM dataset.

Thanks to Emmanuel Tacheau from the Cisco Talos team
<vulndiscovery@external.cisco.com> for the report, sample file (PoC)
and detailed analysis. See TALOS-2024-2121 and CVE-2024-52333.

Gbp-Pq: Name 0008-CVE-2024-52333.patch
dcmimgle/libsrc/diimage.cc