CVE-2021-23017

CVE Details

Release Date:

2021-06-01

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.

See more information about CVE-2021-23017 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	9.4	Base Metrics:	AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Access Vector:	Network	Attack Complexity:	Low
Privileges Required:	None	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	High
Integrity Impact:	High	Availability Impact:	Low

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (nginx)	ELSA-2021-2259	2021-06-08
Oracle Linux version 8 (nginx)	ELSA-2021-2290	2021-06-10
Oracle Linux version 8 (nginx)	ELSA-2022-0323	2022-02-01

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team