{"schema":"threatline.record/2","record":{"id":"CVE-2026-110605","aliases":[],"summary":"libschrift through 0.10.2 Divide by Zero via unitsPerEm in draw_line","details":"libschrift through 0.10.2 contains a divide by zero vulnerability that allows attackers to crash applications by supplying a font with unitsPerEm of 0 in the head table. Attackers can provide a crafted TrueType font whose NaN glyph coordinates bypass clip_points(), causing an out-of-bounds raster read in draw_line() during sft_render() and crashing the process.","categories":["Unclassified"],"product":"libschrift","vendor":"tomolt","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-110605","source_modified_at":"2026-10-14T14:16:45.714Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"libschrift","vendor":"tomolt","versions":[{"version":"0","lessThanOrEqual":"0.10.2","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.8,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00201,"percentile":0.09455,"score_date":"2026-10-23"},"published_at":"2026-10-14T14:16:45.714Z","modified_at":"2026-10-14T14:16:45.714Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-110605","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-14T14:16:45.714Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-110605","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/tomolt/libschrift/issues/46","tags":["issue-tracking"]},{"source":"CVE List","url":"https://hackmd.io/@haind-pwn/libschrift-unitsperem-zero-oob","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://github.com/tomolt/libschrift/blob/v0.10.2/schrift.c#L542","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/tomolt/libschrift/blob/v0.10.2/schrift.c#L1422-L1503","tags":["technical-description"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/libschrift-through-0.10.2-divide-by-zero-via-unitsperem-in-draw-line","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-14T14:16:45.714Z","content_hash":"6034599a71eb4fa5e904da2a05bfb6d342db8dfbd867a584e701f769486b6c81"}}
