CVE-2026-59993: h2o picotls, грешка в паметта

Описание

Оригинално описание

Picotls is a TLS protocol library that allows users select different crypto backends based on their use case. In affected revisions through 44bc503, when picotls is used as a `client-side TLS stack`, a peer can send a `HelloRetryRequest` followed by a `spoofed Hello message` that causes a null-pointer dereference. This can terminate the consuming process, including a process performing other work, resulting in denial of service. This issue is fixed in commit a06ca41.

Засегнати продукти

• h2o picotls: < a06ca417a16f9126808bf5cabe6c5e6e0f16ecae

Вид слабост

• CWE-476 Разименуване на NULL указател

История

Други уязвимости в h2o picotls

• 5.5CVE-2026-45271
• 8.6CVE-2024-45402

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-59993
• https://nvd.nist.gov/vuln/detail/CVE-2026-59993
• https://github.com/h2o/picotls/security/advisories/GHSA-2xcv-h2pg-m99c
• https://github.com/h2o/picotls/pull/608
• https://github.com/h2o/picotls/commit/a06ca417a16f9126808bf5cabe6c5e6e0f16ecae