Vulnerability Details : CVE-2023-6534
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.
Vulnerability category: Denial of service
Products affected by CVE-2023-6534
- cpe:2.3:o:freebsd:freebsd:12.4:rc2-p2:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.4:rc2-p1:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.4:-:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.4:p1:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.4:p2:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:13.2:-:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.4:p3:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:13.2:p1:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.4:p4:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:13.2:p2:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.4:p5:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:13.2:p3:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:13.2:p4:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:13.2:p5:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.4:p6:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.4:p7:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:14.0:-:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.4:p8:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:14.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:14.0:beta5:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:14.0:rc4-p1:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:13.2:p6:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:14.0:p1:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-6534
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 39 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-6534
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
References for CVE-2023-6534
-
https://security.freebsd.org/advisories/FreeBSD-SA-23:17.pf.asc
Vendor Advisory
-
https://security.netapp.com/advisory/ntap-20240112-0007/
CVE-2023-6534 FreeBSD Vulnerability in NetApp Products | NetApp Product Security
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