Descrição
A flaw was found in Samba-s internal DNS server where unauthenticated TKEY registration requests were added to the TKEY name cache before being rejected. A remote, unauthenticated attacker can exploit this behavior by sending a large number of TKEY requests with arbitrary names, exhausting the cache and evicting legitimate TKEY entries. This can prevent legitimate TSIG authentication for signed DNS queries, resulting in a denial of service.
CVSS 5.3EPSS 1.0999999999999999%Risco 0.58
Ver fonte- Publicação
- 2026-07-30 14:17:00
- Versões afetadas
- unknown
- Tipo
- Software crítico
- Última alteração
- 2026-07-30 19:18:26
- Vetor
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L