Dnsmasq: dnsmasq: heap out-of-bounds read in dhcpv6 option 39 fqdn decoder

Özet

Türkçe özeti henüz hazır değil; şimdilik kaynağın kendi açıklamasını gösteriyoruz.

A flaw was found in dnsmasq. The DHCPv6 client hostname parser can read one byte past the end of a crafted FQDN option because it checks the next label length before confirming the pointer is still inside the option. An attacker on the local network can trigger this with a single DHCPv6 packet. The extra byte is not returned to the client or logged, and no crash has been demonstrated.

Etkilenen sürümler10 yazılım

Kaynaklar4 kaynak

• CVE.org kaydı
• NVD kaydı
• bugzilla.redhat.com/show_bug.cgi Üçüncü taraf
• access.redhat.com/security/cve/CVE-2026-93009 Diğer

Kayıt geçmişi

1. 30 Eki 2026 11:20Etkilenen sürüm bilgisi güncellendi
2. 29 Eki 2026 16:13Yayımlandı

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