6.4med

CVE-2003-1230

The implementation of SYN cookies (syncookies) in FreeBSD 4.5 through 5.0-RELEASE-p3 uses only 32-bit internal keys when generating syncook…

Published 22 y ago · modified 4 mo ago · JSON

CVSS
6.4
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.4%
percentile 72%
Public exploits
0
none known

Summary

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.

Exploit prediction (EPSS)

1.35% probability of exploitation in the next 30 days, higher than 72% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD2.06.4AV:N/AC:L/Au:N/C:P/I:P/A:N

References

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.