Unrated severityNVD Advisory· Published Dec 31, 2003· Updated Jun 16, 2026
CVE-2003-1230
CVE-2003-1230
Description
The implementation of SYN cookies (syncookies) in FreeBSD 4.5 through 5.0-RELEASE-p3 uses only 32-bit internal keys when generating syncookies, which makes it easier for remote attackers to conduct brute force ISN guessing attacks and spoof legitimate traffic.
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Affected products
1Patches
Vulnerability mechanics
References
5- www.securityfocus.com/advisories/5013nvdPatchVendor Advisory
- www.securityfocus.com/bid/6920nvdPatch
- secunia.com/advisories/8142/nvdVendor Advisory
- www.osvdb.org/19785nvd
- exchange.xforce.ibmcloud.com/vulnerabilities/11397nvd
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