CVE-2026-3849
Buffer Overflow in HPKE via Oversized ECH Config
Résumé
Buffer Overflow in HPKE via Oversized ECH Config
Description d'origine
La description telle que publiée par la source (souvent en anglais).
Stack Buffer Overflow in wc_HpkeLabeledExtract via Oversized ECH Config. A vulnerability existed in wolfSSL 5.8.4 ECH (Encrypted Client Hello) support, where a maliciously crafted ECH config could cause a stack buffer overflow on the client side, leading to potential remote execution and client program crash. This could be exploited by a malicious TLS server supporting ECH. Note that ECH is off by default, and is only enabled with enable-ech.
État des correctifs par distribution
Paquets corrigés publiés par chaque distribution pour cette CVE
- Debian DEBIAN-CVE-2026-3849 wolfssl
- Ubuntu UBUNTU-CVE-2026-3849 wolfssl
Références
- advisory github.com
- advisory nvd.nist.gov
- patch github.com