CVE-2021-23017
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- CVE-2021-23017
CVE Details
| Release Date: | 2021-06-01 | |
| Impact: | None | What is this? |
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
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 metrics
| Base Score: | 9.4 |
| Vector String: | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L |
| Version: | 3.0 |
| Attack 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 |
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