{"id":"CVE-2026-120454","published":"2026-11-02T15:17:28.950","lastModified":"2026-11-02T19:34:23.993","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.","cvssScore":5.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwes":["CWE-476"],"vendors":[],"products":[],"references":[{"url":"https://github.com/sleuthkit/sleuthkit/blob/sleuthkit-4.15.0/tsk/fs/decmpfs.c#L1154-L1169","tags":[]},{"url":"https://github.com/sleuthkit/sleuthkit/issues/3583","tags":[]},{"url":"https://github.com/sleuthkit/sleuthkit/releases/tag/sleuthkit-4.15.0","tags":[]},{"url":"https://hackmd.io/@haindpwn/sleuthkit-hfs-decmpfs-attr-oob-read","tags":[]},{"url":"https://www.vulncheck.com/advisories/the-sleuth-kit-through-4.15.0-null-pointer-dereference-via-decmpfs-lzvn-decompression","tags":[]}],"exploitRefs":[{"url":"https://github.com/sleuthkit/sleuthkit/blob/sleuthkit-4.15.0/tsk/fs/decmpfs.c#L1154-L1169","tags":[]},{"url":"https://github.com/sleuthkit/sleuthkit/issues/3583","tags":[]},{"url":"https://github.com/sleuthkit/sleuthkit/releases/tag/sleuthkit-4.15.0","tags":[]}],"hasPoc":true,"ai":null}