CVE-2023-6534
Last modified
CVE-2023-6534 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In versions of FreeBSD 14.0-RELEASE before 14-RELEASE-p2, FreeBSD 13.2-RELEASE before 13.2-RELEASE-p7 and FreeBSD 12.4-RELEASE before 12.4-RELEASE-p9, the pf(4) packet filter incorrectly validates TCP sequence numbers. This could allow a malicious actor to execute a denial-of-service attack against hosts behind the firewall.. EPSS estimates a 0.74% chance of exploitation in the next 30 days.
Description
In versions of FreeBSD 14.0-RELEASE before 14-RELEASE-p2, FreeBSD 13.2-RELEASE before 13.2-RELEASE-p7 and FreeBSD 12.4-RELEASE before 12.4-RELEASE-p9, the pf(4) packet filter incorrectly validates TCP sequence numbers. This could allow a malicious actor to execute a denial-of-service attack against hosts behind the firewall.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Freebsd | Freebsd | 12.4 |
| Freebsd | Freebsd | 13.2 |
| Freebsd | Freebsd | 14.0 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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