CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
Mongoose is an embedded web server and network library. Prior to 7.23, the built-in TLS stack selected by MG_TLS_BUILTIN in src/tls_builtin.c accepts a TLS 1.3 record whose decrypted size is exactly the 16-byte authentication tag with no plaintext or ContentType byte. In mg_tls_recv_record(), the msgsz length check permits that record and the recv_len calculation underflows to SIZE_MAX, so a later handshake step treats stale buffer contents as a trusted message with an effectively unbounded length. An unauthenticated malicious TLS peer can trigger a heap out-of-bounds read before certificate or Finished validation, causing a remote denial of service. This issue is fixed in version 7.23.
Засегнати продукти
- cesanta mongoose: < 7.23
Вид слабост
История
- 14 октомври 2026 Публикувано
Други уязвимости в cesanta mongoose
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-73252
- https://nvd.nist.gov/vuln/detail/CVE-2026-73252
- https://github.com/cesanta/mongoose/security/advisories/GHSA-hq58-98f5-2wg3
- https://github.com/cesanta/mongoose/commit/758e301f0c9a9885c1b716195df5fe6d6ac9d53e
- https://github.com/cesanta/mongoose/releases/tag/7.23