GHSA-2fqx-2h7j-c7gqMediumCVSS 5.5
HarfBuzz from 8.0.0 through 14.6.0 contains a NULL pointer dereference vulnerability in the...
🔗 CVE IDs covered (1)
📋 Description
HarfBuzz from 8.0.0 through 14.6.0 contains a NULL pointer dereference vulnerability in the experimental WebAssembly shaper host imports buffer_set_contents, face_create, and font_set_coords. Attackers can supply a crafted font whose embedded wasm module passes out-of-range addresses with non-zero lengths, crashing any application that shapes text with the font.
🔗 References (8)
- https://nvd.nist.gov/vuln/detail/CVE-2026-113680
- https://github.com/harfbuzz/harfbuzz/pull/6414
- https://github.com/harfbuzz/harfbuzz/commit/a71aa86c2bac114fafb6b47f8da02024ecb44fa6
- https://github.com/harfbuzz/harfbuzz/blob/14.6.0/src/hb-wasm-api-buffer.hh#L153-L181
- https://github.com/harfbuzz/harfbuzz/blob/14.6.0/src/hb-wasm-api-face.hh#L34-L49
- https://github.com/harfbuzz/harfbuzz/blob/14.6.0/src/hb-wasm-api-font.hh#L241-L258
- https://www.vulncheck.com/advisories/harfbuzz-8.0.0-through-14.6.0-webassembly-shaper-null-pointer-dereference-dos
- https://github.com/advisories/GHSA-2fqx-2h7j-c7gq