CVE-2004-2652

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 11.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2004-12-31 · updated 2026-06-16

Description

The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP options using FAST output or verbose mode, allows remote attackers to cause a denial of service (crash) via packets with invalid TCP/IP options, which trigger a null dereference.

Affected products

Sourcefire Snort: 2.1.0, 2.1.1_rc1, 2.1.3, 2.2

References

http://secunia.com/advisories/13664
http://securitytracker.com/id?1012656
http://taosecurity.blogspot.com/2004/12/details-on-snort-dos-condition-you-may.html
http://www.frsirt.com/exploits/20041222.angelDust.c.php
http://www.osvdb.org/12578
http://www.securiteam.com/exploits/6X00L20C0S.html
http://www.securityfocus.com/bid/12084
http://www.snort.org/arc_news/
https://exchange.xforce.ibmcloud.com/vulnerabilities/18689
http://secunia.com/advisories/13664
http://securitytracker.com/id?1012656
http://taosecurity.blogspot.com/2004/12/details-on-snort-dos-condition-you-may.html

Get alerted when CVE-2004-2652 or the next vulnerability affects your stack