Added check to make sure: HighBit < BitsAllocated.
authorJoerg Riesmeier <dicom@jriesmeier.com>
Wed, 10 Dec 2025 21:34:17 +0000 (22:34 +0100)
committerÉtienne Mollier <emollier@debian.org>
Wed, 10 Dec 2025 21:34:17 +0000 (22:34 +0100)
commit4bfb4039a739679f85ecb3b8ccdf2f1a7bd44bcc
tree9c3cad39924ec1a32846da57e07aebad23aeee95
parent35f837202f7de3facdc1bd39d2ddd914f679dba5
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