{"id":"CVE-2026-120454","aliases":["AZL-112817","DEBIAN-CVE-2026-120454","EUVD-2026-115214","GHSA-gr3p-v4fr-f93c","UBUNTU-CVE-2026-120454"],"status":"published","title":"The Sleuth Kit through 4.15.0 NULL Pointer Dereference via decmpfs LZVN Decompression","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.","severity":{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00121,"percentile":0.01958,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2026-11-02T14:29:11Z","modified":"2026-11-07T17:00:06Z","affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"sleuthkit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.12.1-2"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"sleuthkit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.11.1+dfsg-1","4.12.0+dfsg-1","4.12.1+dfsg-1","4.12.1+dfsg-1.1","4.12.1+dfsg-1.1~exp1","4.12.1+dfsg-2","4.12.1+dfsg-3","4.14.0+dfsg-1","4.15.0+dfsg-1"]},{"source":"osv","ecosystem":"Debian:13","package":"sleuthkit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.12.1+dfsg-3","4.14.0+dfsg-1","4.15.0+dfsg-1"]},{"source":"osv","ecosystem":"Debian:14","package":"sleuthkit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.12.1+dfsg-3","4.14.0+dfsg-1","4.15.0+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"sleuthkit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.3-2ubuntu1","3.2.3-2ubuntu2","3.2.3-2.1","3.2.3-2.2","3.2.3-2.2ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"sleuthkit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.3-11ubuntu2","4.1.3-12ubuntu1","4.2.0-3","4.2.0-3ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"sleuthkit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.2-1","4.4.2-3"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"sleuthkit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.5-1","4.6.7-1","4.6.7-1build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"sleuthkit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.10.1+dfsg-1","4.11.0+dfsg-1","4.11.1+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"sleuthkit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.12.0+dfsg-1","4.12.1+dfsg-1","4.12.1+dfsg-1.1ubuntu1","4.12.1+dfsg-1.1ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"sleuthkit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.12.1+dfsg-3build1","4.14.0+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"sleuthkit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.12.1+dfsg-3","4.12.1+dfsg-3build1"]}],"products":[{"vendor":"the sleuth kit","product":"the sleuth kit"}],"references":[{"url":"https://github.com/sleuthkit/sleuthkit/issues/3583","tags":["issue-tracking","report"]},{"url":"https://github.com/sleuthkit/sleuthkit/blob/sleuthkit-4.15.0/tsk/fs/decmpfs.c#L1154-L1169","tags":["technical-description","article","report"]},{"url":"https://github.com/sleuthkit/sleuthkit/releases/tag/sleuthkit-4.15.0","tags":["release-notes","advisory","report"]},{"url":"https://hackmd.io/@haindpwn/sleuthkit-hfs-decmpfs-attr-oob-read","tags":["technical-description","article","report"]},{"url":"https://www.vulncheck.com/advisories/the-sleuth-kit-through-4.15.0-null-pointer-dereference-via-decmpfs-lzvn-decompression","tags":["third-party-advisory","advisory","report"]},{"url":"https://hackmd.io/@haindpwn/cve-2026-120453-120454-sleuthkit-hfs-decmpfs-attr-oob-read","tags":["exploit","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-120454","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-gr3p-v4fr-f93c"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/120xxx/CVE-2026-120454.json","tags":["advisory"]},{"url":"https://github.com/sleuthkit/sleuthkit","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-120454","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-120454","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-120454","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-120454","title":"The Sleuth Kit through 4.15.0 NULL Pointer Dereference via decmpfs LZVN Decompression","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.","status":"published","published":"2026-11-02T14:29:11.639Z","modified":"2026-11-05T21:44:51.763Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-05T22:55:19.167207Z"}],"euvd":[{"id":"EUVD-2026-115214","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.","status":"published","published":"2026-11-02T14:29:11Z","modified":"2026-11-05T21:44:51Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-05T23:02:20.394374Z"}],"ghsa":[{"id":"GHSA-gr3p-v4fr-f93c","title":"The Sleuth Kit through 4.15.0 contains a NULL pointer dereference vulnerability in...","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.","status":"published","published":"2026-11-02T15:31:44Z","modified":"2026-11-06T00:33:45Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"},{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-06T00:57:25.690752Z"}],"nvd":[{"id":"CVE-2026-120454","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.","status":"published","published":"2026-11-02T15:17:28.95Z","modified":"2026-11-05T22:17:54.777Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-476"],"updated_at":"2026-11-05T23:57:23.065267Z"}],"osv":[{"id":"CVE-2026-120454","title":"The Sleuth Kit through 4.15.0 NULL Pointer Dereference via decmpfs LZVN Decompression","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.","status":"published","published":"2026-11-02T14:29:11.639Z","modified":"2026-11-07T02:30:49.045316906Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-07T03:08:01.726202Z"},{"id":"DEBIAN-CVE-2026-120454","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.","status":"published","published":"2026-11-02T15:17:28.95Z","modified":"2026-11-07T17:00:06.761094116Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-07T17:19:43.84792Z"},{"id":"UBUNTU-CVE-2026-120454","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.","status":"published","published":"2026-11-02T15:17:00Z","modified":"2026-11-05T04:42:52Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"},{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-05T13:33:25.727744Z"},{"id":"AZL-112817","title":"CVE-2026-120454 affecting package sleuthkit 4.12.1-2","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.","status":"published","published":"2026-11-02T15:17:28Z","modified":"2026-11-07T14:18:05.986584007Z","updated_at":"2026-11-07T14:48:11.583685Z"}]}}