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CVE-2023-27567

Date: March 3, 2023

In OpenBSD 7.2, a TCP packet with destination port 0 that matches a pf divert-to rule can crash the kernel.

Language: C

Severity Score

Related Resources (5)

https://security.netapp.com/advisory/ntap-20230406-0001/
https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/013_tcp.patch.sig
https://github.com/openbsd/src/commit/0a543725ccdd2a01669122ce79bb67e66ede77f2
https://nvd.nist.gov/vuln/detail/CVE-2023-27567
https://www.mend.io/vulnerability-database/CVE-2023-27567

Severity Score

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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