{"id":"CVE-2026-111159","summary":"libewf through 20260924 Heap Out-of-Bounds Read via L01 Extended Attribute Parsing","details":"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.","modified":"2026-10-17T02:46:44.136701605Z","published":"2026-10-15T18:57:47.615Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-125"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111159.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111159.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111159"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/libewf-through-20260924-heap-out-of-bounds-read-via-l01-extended-attribute-parsing"},{"type":"PACKAGE","url":"https://github.com/libyal/libewf"},{"type":"ARTICLE","url":"https://github.com/libyal/libewf/blob/d76fd0bb21601e2969bc88ffdaeb861023f6a5b2/libewf/libewf_lef_extended_attribute.c#L362-L408"},{"type":"ARTICLE","url":"https://github.com/libyal/libewf/blob/d76fd0bb21601e2969bc88ffdaeb861023f6a5b2/libewf/libewf_lef_extended_attribute.c#L456-L560"},{"type":"EVIDENCE","url":"https://hackmd.io/@haind-pwn/libewf-lef-extended-attribute-utf16-size-oob-read"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/libyal/libewf","events":[{"introduced":"0"},{"fixed":"d76fd0bb21601e2969bc88ffdaeb861023f6a5b2"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"20260924"},{"fixed":"20260924"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["20240506"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111159.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}