Integer Underflow Affecting dislocker package, versions <0.7.4-1


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-DISLOCKER-20675486
  • published9 Oct 2026
  • disclosed8 Oct 2026

Introduced: 8 Oct 2026

NewCVE-2026-107635  (opens in a new tab)
CWE-191  (opens in a new tab)

How to fix?

Upgrade Debian:unstable dislocker to version 0.7.4-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dislocker package and not the dislocker package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1