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FreeBSD: VID-0882F019-BD60-11EB-9BDD-8C164567CA3C (CVE-2021-23017): NGINX -- 1-byte memory overwrite in resolver

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FreeBSD: VID-0882F019-BD60-11EB-9BDD-8C164567CA3C (CVE-2021-23017): NGINX -- 1-byte memory overwrite in resolver

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
05/25/2021
Created
11/08/2022
Added
11/04/2022
Modified
11/04/2022

Description

A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact.

Solution(s)

  • freebsd-upgrade-package-nginx
  • freebsd-upgrade-package-nginx-devel

References

  • CVE-2021-23017
  • USN-4967-1
  • USN-4967-2

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