Source: dcmtk Version: 3.7.0+really3.7.0-7 X-Debbugs-CC: [email protected] Severity: important Tags: security upstream Forwarded: https://support.dcmtk.org/redmine/issues/1213
Hi, The following vulnerability was published for dcmtk. CVE-2026-44034[0]: | A heap-based out-of-bounds read in DcmRLECodecDecoder::decodeFrame() | in dcmdata/libsrc/dcrleccd.cc of OFFIS DCMTK 3.7.0 allows an | attacker to read up to 63 bytes of adjacent heap memory, or cause a | crash, via a crafted RLE Lossless DICOM file whose pixel data | fragment is shorter than the 64-byte RLE header. The function copies | 64 bytes without checking the fragment length, a check that the | sibling function decode() already performs. Applications that decode | RLE images frame by frame (for example, through | DcmPixelData::getUncompressedFrame()) are affected. The dcmdrle | command-line tool uses decode() and is not affected. The issue is | fixed in commit 45469f3c30037e9c7159290e4bb74cd7b3b9ef1d. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-44034 https://www.cve.org/CVERecord?id=CVE-2026-44034 [1] https://support.dcmtk.org/redmine/issues/1213 [2] https://github.com/DCMTK/dcmtk/commit/45469f3c30037e9c7159290e4bb74cd7b3b9ef1d Please adjust the affected versions in the BTS as needed. Regards, Salvatore
