Vulnerability Details : CVE-2023-27567
In OpenBSD 7.2, a TCP packet with destination port 0 that matches a pf divert-to rule can crash the kernel.
Products affected by CVE-2023-27567
- cpe:2.3:o:openbsd:openbsd:7.2:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-27567
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 24 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-27567
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 |
CWE ids for CVE-2023-27567
-
The product does not properly control the allocation and maintenance of a limited resource.Assigned by: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
References for CVE-2023-27567
-
https://security.netapp.com/advisory/ntap-20230406-0001/
CVE-2023-27567 OpenBSD Vulnerability in NetApp Products | NetApp Product Security
-
https://github.com/openbsd/src/commit/0a543725ccdd2a01669122ce79bb67e66ede77f2
Binding the accept socket in TCP input relies on the fact that the · openbsd/src@0a54372 · GitHub
-
https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/013_tcp.patch.sig
Patch
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