{"id":"CVE-2026-111159","aliases":["DEBIAN-CVE-2026-111159","EUVD-2026-102286","GHSA-xjw3-jc7r-r4g6","UBUNTU-CVE-2026-111159"],"status":"published","title":"libewf through 20260924 Heap Out-of-Bounds Read via L01 Extended Attribute Parsing","description":"libewf through 20260924 contains a heap out-of-bounds read vulnerability in libewf_lef_extended_attribute_read_data() because UTF-16 name and value sizes are validated before being doubled. Attackers can supply a crafted .L01/.Lx01 file with oversized 'ea' metadata counts to crash the application or leak uninitialized heap memory through extended attributes.","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":"2026-11-10","score":0.00127,"percentile":0.02384,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-10-15T18:57:47Z","modified":"2026-10-28T17:50:35Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"libewf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20140813-1","20140814-1","20140816-1","20140816-2","20171104-1"]},{"source":"osv","ecosystem":"Debian:13","package":"libewf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20140816-1","20140816-2","20171104-1"]},{"source":"osv","ecosystem":"Debian:14","package":"libewf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20140816-1","20140816-2","20171104-1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"libewf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20140608-6"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"libewf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20140608-6","20140608-6.1","20140608-6.1build1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libewf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20140804-1","20140807-1","20140807-2","20140807-2build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"libewf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20140807-2build2","20140807-2ubuntu1","20140807-2ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"libewf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20140814-1","20140814-1build1","20140814-1build2","20140814-1build3"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"libewf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20140816-2build1","20140816-2build2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"libewf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20140816-1build1","20140816-2","20140816-2build1"]}],"products":[{"vendor":"libyal","product":"libewf"}],"references":[{"url":"https://hackmd.io/@haind-pwn/libewf-lef-extended-attribute-utf16-size-oob-read","tags":["technical-description","exploit","evidence","report"]},{"url":"https://github.com/libyal/libewf/blob/d76fd0bb21601e2969bc88ffdaeb861023f6a5b2/libewf/libewf_lef_extended_attribute.c#L362-L408","tags":["technical-description","article","report"]},{"url":"https://github.com/libyal/libewf/blob/d76fd0bb21601e2969bc88ffdaeb861023f6a5b2/libewf/libewf_lef_extended_attribute.c#L456-L560","tags":["technical-description","article","report"]},{"url":"https://github.com/libyal/libewf","tags":["product","package","report"]},{"url":"https://www.vulncheck.com/advisories/libewf-through-20260924-heap-out-of-bounds-read-via-l01-extended-attribute-parsing","tags":["third-party-advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111159","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-xjw3-jc7r-r4g6"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111159.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-111159","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-111159","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-111159","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-111159","title":"libewf through 20260924 Heap Out-of-Bounds Read via L01 Extended Attribute Parsing","description":"libewf through 20260924 contains a heap out-of-bounds read vulnerability in libewf_lef_extended_attribute_read_data() because UTF-16 name and value sizes are validated before being doubled. Attackers can supply a crafted .L01/.Lx01 file with oversized 'ea' metadata counts to crash the application or leak uninitialized heap memory through extended attributes.","status":"published","published":"2026-10-15T18:57:47.615Z","modified":"2026-10-26T13:57:57.611Z","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-125"],"updated_at":"2026-11-02T14:20:15.34316Z"}],"euvd":[{"id":"EUVD-2026-102286","description":"libewf through 20260924 contains a heap out-of-bounds read vulnerability in libewf_lef_extended_attribute_read_data() because UTF-16 name and value sizes are validated before being doubled. Attackers can supply a crafted .L01/.Lx01 file with oversized 'ea' metadata counts to crash the application or leak uninitialized heap memory through extended attributes.","status":"published","published":"2026-10-15T18:57:47Z","modified":"2026-10-26T13:57:57Z","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":"2026-11-02T16:59:29.915597Z"}],"ghsa":[{"id":"GHSA-xjw3-jc7r-r4g6","title":"libewf through 20260924 contains a heap out-of-bounds read vulnerability in...","description":"libewf through 20260924 contains a heap out-of-bounds read vulnerability in libewf_lef_extended_attribute_read_data() because UTF-16 name and value sizes are validated before being doubled. Attackers can supply a crafted .L01/.Lx01 file with oversized 'ea' metadata counts to crash the application or leak uninitialized heap memory through extended attributes.","status":"published","published":"2026-10-15T21:36:07Z","modified":"2026-10-15T21:36:07Z","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"},{"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"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:13:49.297576Z"}],"nvd":[{"id":"CVE-2026-111159","description":"libewf through 20260924 contains a heap out-of-bounds read vulnerability in libewf_lef_extended_attribute_read_data() because UTF-16 name and value sizes are validated before being doubled. Attackers can supply a crafted .L01/.Lx01 file with oversized 'ea' metadata counts to crash the application or leak uninitialized heap memory through extended attributes.","status":"published","published":"2026-10-15T19:17:30.96Z","modified":"2026-10-26T15:16:37.787Z","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":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:12:59.751798Z"}],"osv":[{"id":"CVE-2026-111159","title":"libewf through 20260924 Heap Out-of-Bounds Read via L01 Extended Attribute Parsing","description":"libewf through 20260924 contains a heap out-of-bounds read vulnerability in libewf_lef_extended_attribute_read_data() because UTF-16 name and value sizes are validated before being doubled. Attackers can supply a crafted .L01/.Lx01 file with oversized 'ea' metadata counts to crash the application or leak uninitialized heap memory through extended attributes.","status":"published","published":"2026-10-15T18:57:47.615Z","modified":"2026-10-28T02:30:41.496086626Z","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-125"],"updated_at":"2026-11-02T15:44:55.61515Z"},{"id":"DEBIAN-CVE-2026-111159","description":"libewf through 20260924 contains a heap out-of-bounds read vulnerability in libewf_lef_extended_attribute_read_data() because UTF-16 name and value sizes are validated before being doubled. 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Attackers can supply a crafted .L01/.Lx01 file with oversized 'ea' metadata counts to crash the application or leak uninitialized heap memory through extended attributes.","status":"published","published":"2026-10-15T19:17:00Z","modified":"2026-10-28T17:50:35Z","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":"2026-11-02T16:55:59.591851Z"}]}}