Vulnerability Description
In OpenBSD 7.2, a TCP packet with destination port 0 that matches a pf divert-to rule can crash the kernel.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openbsd | Openbsd | 7.2 |
Related Weaknesses (CWE)
References
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/013_tcp.patch.sigPatch
- https://github.com/openbsd/src/commit/0a543725ccdd2a01669122ce79bb67e66ede77f2
- https://security.netapp.com/advisory/ntap-20230406-0001/
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/013_tcp.patch.sigPatch
- https://github.com/openbsd/src/commit/0a543725ccdd2a01669122ce79bb67e66ede77f2
- https://security.netapp.com/advisory/ntap-20230406-0001/
FAQ
What is CVE-2023-27567?
CVE-2023-27567 is a vulnerability with a CVSS score of 7.5 (HIGH). In OpenBSD 7.2, a TCP packet with destination port 0 that matches a pf divert-to rule can crash the kernel.
How severe is CVE-2023-27567?
CVE-2023-27567 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-27567?
Check the references section above for vendor advisories and patch information. Affected products include: Openbsd Openbsd.