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.
Metrics
CVSS 2.0 6.4/10
AV:N/AC:L/Au:N/C:P/I:P/A:NAffected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://secunia.com/advisories/8142/Vendor Advisory
- http://www.osvdb.org/19785
- http://www.securityfocus.com/advisories/5013Patch, Vendor Advisory
- http://www.securityfocus.com/bid/6920Patch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/11397
- http://secunia.com/advisories/8142/Vendor Advisory
- http://www.osvdb.org/19785
- http://www.securityfocus.com/advisories/5013Patch, Vendor Advisory
- http://www.securityfocus.com/bid/6920Patch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/11397
Timeline
- Published
- Dec 31, 2003
- Last modified
- Jun 16, 2026
- NVD status
- Modified