GHSA-hqgm-v7cx-mq25HighCVSS 7.0
HarfBuzz 8.0.0 through 14.6.0 contains an out-of-bounds write vulnerability in the experimental...
🔗 CVE IDs covered (1)
📋 Description
HarfBuzz 8.0.0 through 14.6.0 contains an out-of-bounds write vulnerability in the experimental WebAssembly shaper because the font_glyph_to_string import has a wrong WAMR signature. Attackers can supply a crafted font whose wasm module places the output buffer near linear memory's end, writing glyph-name bytes into host memory to crash or corrupt applications.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-113679
- https://github.com/harfbuzz/harfbuzz/pull/6414
- https://github.com/harfbuzz/harfbuzz/commit/5e821de8256d01780566b5c8ab7886fae4c93da8
- https://github.com/harfbuzz/harfbuzz/blob/14.6.0/src/hb-wasm-api-font.hh#L115-L123
- https://github.com/harfbuzz/harfbuzz/blob/14.6.0/src/hb-wasm-api-list.hh#L85
- https://www.vulncheck.com/advisories/harfbuzz-8.0.0-through-14.6.0-out-of-bounds-write-via-webassembly-font-glyph-to-string
- https://github.com/advisories/GHSA-hqgm-v7cx-mq25