{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-120454", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-02T12:42:21.444Z", "datePublished": "2026-11-02T14:29:11.639Z", "dateUpdated": "2026-11-02T14:29:11.639Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-02T14:29:11.639Z"}, "datePublic": "2026-10-21T00:00:00.000Z", "title": "The Sleuth Kit through 4.15.0 NULL Pointer Dereference via decmpfs LZVN Decompression", "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "NULL Pointer Dereference", "cweId": "CWE-476", "type": "CWE"}]}], "affected": [{"vendor": "The Sleuth Kit", "product": "The Sleuth Kit", "packageURL": "pkg:github/sleuthkit/sleuthkit", "defaultStatus": "unaffected", "versions": [{"version": "0", "lessThanOrEqual": "4.15.0", "status": "affected", "versionType": "semver"}], "repo": "https://github.com/sleuthkit/sleuthkit"}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:sleuthkit:the_sleuth_kit:*:*:*:*:*:*:*:*", "versionEndIncluding": "4.15.0"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "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", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/sleuthkit/sleuthkit/issues/3583", "tags": ["issue-tracking"]}, {"url": "https://github.com/sleuthkit/sleuthkit/blob/sleuthkit-4.15.0/tsk/fs/decmpfs.c#L1154-L1169", "tags": ["technical-description"]}, {"url": "https://github.com/sleuthkit/sleuthkit/releases/tag/sleuthkit-4.15.0", "tags": ["release-notes"], "name": "The Sleuth Kit sleuthkit-4.15.0 Release Notes"}, {"url": "https://hackmd.io/@haindpwn/sleuthkit-hfs-decmpfs-attr-oob-read", "tags": ["technical-description"]}, {"name": "VulnCheck Advisory: The Sleuth Kit through 4.15.0 NULL Pointer Dereference via decmpfs LZVN Decompression", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/the-sleuth-kit-through-4.15.0-null-pointer-dereference-via-decmpfs-lzvn-decompression"}], "credits": [{"lang": "en", "value": "HaiND from the Post and Telecommunication Institute of Technology", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}