CVE-2026-12969: Enterprise Linux: sınır dışı okuma

Açıklama (NVD)

An out-of-bounds read vulnerability exists in dnsmasq's find_soa() function in src/rfc1035.c. When parsing NS section records, extract_name() is called with extrabytes=0, failing to validate that 10 additional bytes exist for fixed-length DNS record fields. A remote attacker controlling a DNS zone can exploit this via a crafted NXDOMAIN response to cause a 10-byte heap out-of-bounds read, potentially accessing stale data from prior transactions.

Özet bilgiler

Ürün

Redhat Enterprise Linux

CVSS v3.1

5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CWE

CWE-125

Yama

Geçici çözüm

Etkilenen sürümler

Kaynaklar

• NVD kaydı
• access.redhat.com
• bugzilla.redhat.com
• CWE-125