The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP options using FAST output or verbose mode, allows…

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.

Scores

EPSS (exploitation in 30 days)

11.2% · top 4.0% of all CVEs (3 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.

Weakness

• n/a

Affected products

• n/a

  • affected n/a

References (9)

• 1012656 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• http://www.frsirt.com/exploits/20041222.angelDust.c.php (opens in a new tab)x_refsource_MISCx_transferred
• snort-tcpip-printing-dos(18689) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• 12084 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• http://www.securiteam.com/exploits/6X00L20C0S.html (opens in a new tab)x_refsource_MISCx_transferred
• 12578 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• http://www.snort.org/arc_news/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• 13664 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://taosecurity.blogspot.com/2004/12/details-on-snort-dos-condition-you-may.html (opens in a new tab)x_refsource_MISCx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2004-2652](https://trackcve.app/badge/CVE-2004-2652.svg)](https://trackcve.app/cve/CVE-2004-2652)

Record last updated 8 Aug 2024, 01:36 UTC.