VULNERABILITY INTELLIGENCE
CVE-2019-8460
CVSS score7.5 HIGH
EPSS probability2.25%
CISA KEVNot currently listed
Published2019-08-26
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
OpenBSD kernel version <= 6.5 can be forced to create long chains of TCP SACK holes that causes very expensive calls to tcp_sack_option() for every incoming SACK packet which can lead to a denial of service.
Weakness classification
- CWE-1049: Excessive Data Query Operations in a Large Data Table
Primary references
- cve@checkpoint.com — Exploit, Vendor Advisory
- cve@checkpoint.com — Patch, Third Party Advisory
- cve@checkpoint.com — Exploit, Patch, Press/Media Coverage, Third Party Advisory
- cve@checkpoint.com — Third Party Advisory
- cve@checkpoint.com
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Patch, Press/Media Coverage, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108