{"id":"CVE-2026-107635","aliases":["DEBIAN-CVE-2026-107635","EUVD-2026-95022","GHSA-v459-vrm9-x34f","UBUNTU-CVE-2026-107635"],"status":"published","title":"Dislocker through 0.7.3 Out-of-Bounds Heap Read via VMK/FVEK Datum Size Underflow","description":"Dislocker through 0.7.3 contains an integer underflow vulnerability in get_vmk() and get_fvek() that allows attackers to trigger out-of-bounds heap reads via crafted datum sizes. Attackers can supply a malicious BitLocker volume image with a datum_size smaller than the 36-byte AES-CCM header, causing hexdump() to over-read and crash dislocker.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00127,"percentile":0.02378,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-191"],"published":"2026-10-08T14:10:33Z","modified":"2026-10-28T10:46:03Z","fixes":[{"ecosystem":"Debian:14","package":"dislocker","fixed_in":["0.7.4-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"dislocker","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.3+git20240607-1","0.7.3+git20240607-2","0.7.3+git20240607-3","0.7.3+git20250907-1","0.7.3-3","0.7.3-3.1","0.7.3-3.1~exp1","0.7.4-1"]},{"source":"osv","ecosystem":"Debian:13","package":"dislocker","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.3+git20240607-3","0.7.3+git20250907-1","0.7.4-1"]},{"source":"osv","ecosystem":"Debian:14","package":"dislocker","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7.4-1"}]}],"versions":["0.7.3+git20240607-3","0.7.3+git20250907-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"dislocker","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.1-7","0.7.1-3","0.7.1-3build1","0.7.1-3build2","0.7.1-3build3"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"dislocker","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.1-4build1","0.7.1-5"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"dislocker","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.3-2","0.7.3-2ubuntu1","0.7.3-2ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"dislocker","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.3-2.1ubuntu2","0.7.3-3","0.7.3-3.1","0.7.3-3.1build1","0.7.3-3.1build2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"dislocker","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.3+git20250907-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"dislocker","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.3+git20240607-3build1","0.7.3+git20250907-1"]}],"products":[{"vendor":"aorimn","product":"dislocker"}],"references":[{"url":"https://github.com/Aorimn/dislocker/commit/0706462db88efe8df88150e4c3e4332b808f4581","tags":["patch","fix","report"]},{"url":"https://github.com/Aorimn/dislocker/blob/v0.7.3/src/metadata/vmk.c#L146-L180","tags":["technical-description","article","report"]},{"url":"https://github.com/Aorimn/dislocker/blob/v0.7.3/src/metadata/fvek.c#L90-L105","tags":["technical-description","article","report"]},{"url":"https://github.com/Aorimn/dislocker","tags":["product","package","report"]},{"url":"https://www.vulncheck.com/advisories/dislocker-through-0.7.3-out-of-bounds-heap-read-via-vmk-fvek-datum-size-underflow","tags":["third-party-advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107635","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-v459-vrm9-x34f"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107635.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-107635","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-107635","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-107635","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-107635","title":"Dislocker through 0.7.3 Out-of-Bounds Heap Read via VMK/FVEK Datum Size Underflow","description":"Dislocker through 0.7.3 contains an integer underflow vulnerability in get_vmk() and get_fvek() that allows attackers to trigger out-of-bounds heap reads via crafted datum sizes. Attackers can supply a malicious BitLocker volume image with a datum_size smaller than the 36-byte AES-CCM header, causing hexdump() to over-read and crash dislocker.","status":"published","published":"2026-10-08T14:10:33.744Z","modified":"2026-10-16T11:38:58.06Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-191"],"updated_at":"2026-11-02T13:45:14.072357Z"}],"euvd":[{"id":"EUVD-2026-95022","description":"Dislocker through 0.7.3 contains an integer underflow vulnerability in get_vmk() and get_fvek() that allows attackers to trigger out-of-bounds heap reads via crafted datum sizes. Attackers can supply a malicious BitLocker volume image with a datum_size smaller than the 36-byte AES-CCM header, causing hexdump() to over-read and crash dislocker.","status":"published","published":"2026-10-08T14:10:33Z","modified":"2026-10-16T11:38:58Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:00:06.711534Z"}],"ghsa":[{"id":"GHSA-v459-vrm9-x34f","title":"Dislocker through 0.7.3 contains an integer underflow vulnerability in get_vmk() and get_fvek()...","description":"Dislocker through 0.7.3 contains an integer underflow vulnerability in get_vmk() and get_fvek() that allows attackers to trigger out-of-bounds heap reads via crafted datum sizes. Attackers can supply a malicious BitLocker volume image with a datum_size smaller than the 36-byte AES-CCM header, causing hexdump() to over-read and crash dislocker.","status":"published","published":"2026-10-08T15:33:07Z","modified":"2026-10-08T15:33:07Z","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"},{"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"}],"cwes":["CWE-191"],"updated_at":"2026-11-02T15:12:57.235839Z"}],"nvd":[{"id":"CVE-2026-107635","description":"Dislocker through 0.7.3 contains an integer underflow vulnerability in get_vmk() and get_fvek() that allows attackers to trigger out-of-bounds heap reads via crafted datum sizes. Attackers can supply a malicious BitLocker volume image with a datum_size smaller than the 36-byte AES-CCM header, causing hexdump() to over-read and crash dislocker.","status":"published","published":"2026-10-08T15:17:46.34Z","modified":"2026-10-16T12:16:31.87Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/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":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-191"],"updated_at":"2026-11-02T14:12:55.142936Z"}],"osv":[{"id":"CVE-2026-107635","title":"Dislocker through 0.7.3 Out-of-Bounds Heap Read via VMK/FVEK Datum Size Underflow","description":"Dislocker through 0.7.3 contains an integer underflow vulnerability in get_vmk() and get_fvek() that allows attackers to trigger out-of-bounds heap reads via crafted datum sizes. Attackers can supply a malicious BitLocker volume image with a datum_size smaller than the 36-byte AES-CCM header, causing hexdump() to over-read and crash dislocker.","status":"published","published":"2026-10-08T14:10:33.744Z","modified":"2026-10-28T10:46:03.517414451Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-191"],"updated_at":"2026-11-02T15:44:54.933106Z"},{"id":"DEBIAN-CVE-2026-107635","description":"Dislocker through 0.7.3 contains an integer underflow vulnerability in get_vmk() and get_fvek() that allows attackers to trigger out-of-bounds heap reads via crafted datum sizes. Attackers can supply a malicious BitLocker volume image with a datum_size smaller than the 36-byte AES-CCM header, causing hexdump() to over-read and crash dislocker.","status":"published","published":"2026-10-08T15:17:46.34Z","modified":"2026-10-28T05:00:09.228407915Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:49.381767Z"},{"id":"UBUNTU-CVE-2026-107635","description":"Dislocker through 0.7.3 contains an integer underflow vulnerability in get_vmk() and get_fvek() that allows attackers to trigger out-of-bounds heap reads via crafted datum sizes. Attackers can supply a malicious BitLocker volume image with a datum_size smaller than the 36-byte AES-CCM header, causing hexdump() to over-read and crash dislocker.","status":"published","published":"2026-10-08T15:17:00Z","modified":"2026-10-22T10:30:04.97162664Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","level":"medium"},{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:55:59.130573Z"}]}}