CVE-2008-2469

libspf2 < 1.2.8 - Remote Code Execution via DNS TXT Record Length Field

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2008-2469. PoCs published by Dan Kaminsky.

AI-analyzed exploit summary This is a detailed advisory and analysis of CVE-2008-2469, a heap overflow vulnerability in LibSPF2 due to improper parsing of DNS TXT records. The writeup includes technical details, proof-of-concept validation, and recommendations for mitigation.

Description

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.

Exploits (1)

exploitdb WRITEUP VERIFIED
by Dan Kaminsky · textdosmultiple
https://www.exploit-db.com/exploits/6805

This is a detailed advisory and analysis of CVE-2008-2469, a heap overflow vulnerability in LibSPF2 due to improper parsing of DNS TXT records. The writeup includes technical details, proof-of-concept validation, and recommendations for mitigation.

Classification
Writeup 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: LibSPF2 1.2.5 and earlier
No auth needed
Prerequisites: Ability to send crafted DNS responses to a target using LibSPF2 · Target system must perform DNS TXT record queries (e.g., SPF validation)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (18)

Core 18
Core References
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/32720
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/6805
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/32396
Exploit, Patch vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/31881
Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/4487
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/46055
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2008/dsa-1659
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2008/2896
Various Sources x_refsource_misc
http://www.doxpara.com/?page_id=1256
Various Sources x_refsource_misc
http://www.doxpara.com/?p=1263
Third Party Advisory vendor-advisory x_refsource_gentoo
http://security.gentoo.org/glsa/glsa-200810-03.xml
US Government Resource third-party-advisory x_refsource_cert-vn
http://www.kb.cert.org/vuls/id/183657
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/32496
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/32450

Scores

EPSS 0.2225
EPSS Percentile 97.4%

Details

CWE
CWE-119
Status published
Products (9)
libspf/libspf2 1.0.2
libspf/libspf2 1.0.3
libspf/libspf2 1.0.4
libspf/libspf2 1.2.1
libspf/libspf2 1.2.3
libspf/libspf2 1.2.4
libspf/libspf2 1.2.5
libspf/libspf2 1.2.6
libspf/libspf2 < 1.2.7
Published Oct 23, 2008
Tracked Since Feb 18, 2026