{"schema":"threatline.record/2","record":{"id":"CVE-2026-97399","aliases":[],"summary":"One-byte overread in strncasecmp on Power8","details":"The strncasecmp function in the GNU C Library 2.24 and later optimized for the Power8 architecture may read one byte beyond the input size limit, which may crash a program when that byte is not readable.\n\nThis condition may happen when the input strings to the strncasecmp function are attacker controlled in an application and they match all the way up to the edge of their page and the neighbouring page is either not mapped or is not readable.","categories":["Libraries & packages"],"product":"glibc","vendor":"The GNU C Library","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97399","source_modified_at":"2026-09-28T17:07:36.744Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"glibc","vendor":"The GNU C Library","versions":[{"status":"affected","version":"2.24","lessThan":"2.45","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97399","source_modified_at":"2026-09-28T17:07:36.744Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"glibc","ecosystem":null},"version":"2.45","basis":"first unaffected version stated in the CVE record"}],"cvss":3.7,"severity":"Low","kev":{"listed":false},"epss":{"probability":0.00292,"percentile":0.20622,"score_date":"2026-10-23"},"published_at":"2026-09-28T15:21:02.090Z","modified_at":"2026-09-28T17:07:36.744Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-97399","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-28T17:07:36.744Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-97399","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://sourceware.org/bugzilla/show_bug.cgi?id=34683","tags":["issue-tracking"]},{"source":"CVE List","url":"https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advisories/GLIBC-SA-2026-0024","tags":["vendor-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-28T15:33:28.320527Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-09-28T17:07:36.744Z","content_hash":"0e5ec859a05139ee74d108507205526829e0efde336638365f5b80f91336e57a"}}