CVE-2026-107634

Description

Dislocker through 0.7.3 contains a heap out-of-bounds read vulnerability in get_dataset() and get_next_datum() that never validate dataset and datum sizes against the metadata allocation. Attackers can craft a BitLocker volume image with inflated dataset or datum sizes that, when opened or mounted, crashes dislocker or discloses adjacent heap memory.

References

• https://github.com/Aorimn/dislocker
• https://github.com/Aorimn/dislocker/blob/v0.7.3/src/metadata/datums.c#L589-L640
• https://github.com/Aorimn/dislocker/blob/v0.7.3/src/metadata/metadata.c#L764-L790
• https://github.com/Aorimn/dislocker/commit/9158e9e41dd669b360cbc53cc18ccae729b67b48
• https://www.vulncheck.com/advisories/dislocker-through-0.7.3-heap-out-of-bounds-read-via-bitlocker-metadata-dataset-size