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Medium · 5.5 CVE-2026-120454 EUVD-2026-115214GHSA-gr3p-v4fr-f93c

The Sleuth Kit through 4.15.0 NULL Pointer Dereference via decmpfs LZVN Decompression

Published Nov 2, 2026 · Updated Nov 5, 2026 · Assigned by VulnCheck

Description

The Sleuth Kit through 4.15.0 contains a NULL pointer dereference vulnerability in decmpfs_decompress_lzvn_attr() that allows attackers to crash the tool by supplying a crafted HFS+ image. Attackers can set a huge uncompressed_size in an LZVN inline com.apple.decmpfs attribute so allocation fails and the decoder writes through NULL, causing denial of service.

Affected products

VendorProductAffectedFixed
The Sleuth Kit The Sleuth Kit ≤ 4.15.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 sleuthkit No fix yet —
Debian 13 sleuthkit No fix yet —
Debian 12 sleuthkit No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 sleuthkit No fix yet —
Ubuntu 26.04 LTS sleuthkit No fix yet —
Ubuntu 24.04 LTS sleuthkit No fix yet —
Ubuntu 22.04 LTS sleuthkit No fix yet —
Ubuntu 20.04 LTS sleuthkit No fix yet —
Show 3 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 18.04 LTS sleuthkit No fix yet —
Ubuntu Pro 16.04 LTS sleuthkit No fix yet —
Ubuntu Pro 14.04 LTS sleuthkit No fix yet —

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 sleuthkit No fix yet —

References