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CVE-2026-46727 An issue was discovered in Ruby 4 before 4.0.5
Description
An issue was discovered in Ruby 4 before 4.0.5. A race condition leading to a use-after-free in the pthread-based getaddrinfo timeout handler (rb_getaddrinfo in ext/socket/raddrinfo.c) allows a remote attacker who can delay DNS responses near the user-specified timeout to crash a Ruby process that calls Addrinfo.getaddrinfo(..., timeout:) or Socket.tcp(..., resolv_timeout:). Memory-corruption-based exploitation is theoretically possible. The attack could, for example, be carried out through a crafted authoritative DNS server or recursive resolver.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Ruby 4.0 | 4.0.0 → < 4.0.5 | 4.0.5 |
Références
- hackerone.com hackerone.com
- www.ruby-lang.org www.ruby-lang.org
Chronologie
- Publiée
- Dernière modification