CVE-2026-107635 | BDVDB-2026-384821 Detail
Aorimndislocker
Description#
Dislocker through 0.7.3 contains an integer underflow vulnerability in get_vmk() and get_fvek() that allows attackers to trigger out-of-bounds heap reads via crafted datum sizes. Attackers can supply a malicious BitLocker volume image with a datum_size smaller than the 36-byte AES-CCM header, causing hexdump() to over-read and crash dislocker.
Impact#
Per CVSS v3.1: confidentiality impact low, integrity impact none, availability impact high. Attack vector: local.
Weaknesses#
- CWE-191 Integer Underflow (Wrap or Wraparound)
References#
- https://github.com/Aorimn/dislocker/commit/0706462db88efe8df88150e4c3e4332b808f4581
- https://github.com/Aorimn/dislocker/blob/v0.7.3/src/metadata/vmk.c#L146-L180
- https://github.com/Aorimn/dislocker/blob/v0.7.3/src/metadata/fvek.c#L90-L105
- https://github.com/Aorimn/dislocker
- https://www.vulncheck.com/advisories/dislocker-through-0.7.3-out-of-bounds-heap-read-via-vmk-fvek-datum-size-underflow
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.