CVE-2026-120454 | BDVDB-2026-399271 Detail
The Sleuth KitThe Sleuth Kit
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.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: local.
Weaknesses#
- CWE-476 NULL Pointer Dereference
References#
- https://github.com/sleuthkit/sleuthkit/issues/3583
- https://github.com/sleuthkit/sleuthkit/blob/sleuthkit-4.15.0/tsk/fs/decmpfs.c#L1154-L1169
- https://github.com/sleuthkit/sleuthkit/releases/tag/sleuthkit-4.15.0
- https://hackmd.io/@haindpwn/sleuthkit-hfs-decmpfs-attr-oob-read
- https://www.vulncheck.com/advisories/the-sleuth-kit-through-4.15.0-null-pointer-dereference-via-decmpfs-lzvn-decompression
- https://hackmd.io/@haindpwn/cve-2026-120453-120454-sleuthkit-hfs-decmpfs-attr-oob-read
Exploit#
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.