When segmenting specially crafted text, segmentation would corrupt memory leading to a potentially exploitable crash. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird < 128.6.
No PoCs from references.
- https://github.com/5211-yx/javascript_fuzzer
- https://github.com/googleprojectzero/fuzzilli