CVE-2008-2469: Libspf LIBSPF2

High severity, CVSS 10.0. EPSS: 22.3% chance of exploitation in the next 30 days.

Heap-based buffer overflow in the SPF_dns_resolv_lookup function in Spf_dns_resolv.c in libspf2 before 1.2.8 allows remote attackers to execute arbitrary code via a long DNS TXT record with a modified length field.

Affected products

• Libspf LIBSPF2: up to and including 1.2.7; version 1.0.2 only; version 1.0.3 only; version 1.0.4 only; version 1.2.1 only; version 1.2.3 only; …

Published 2008-10-23. Last modified 2026-06-16.