Executive Summary

Informations
Name CVE-2021-23017 First vendor Publication 2021-06-01
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Overall CVSS Score 7.7
Base Score 7.7 Environmental Score 7.7
impact SubScore 5.5 Temporal Score 7.7
Exploitabality Sub Score 2.2
 
Attack Vector Network Attack Complexity High
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact Low
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23017

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 466
Application 1
Application 1
Application 1
Application 4
Application 4
Application 2
Application 1
Application 2
Application 4
Application 11
Os 2

Sources (Detail)

http://mailman.nginx.org/pipermail/nginx-announce/2021/000300.html
http://packetstormsecurity.com/files/167720/Nginx-1.20.0-Denial-Of-Service.html
https://lists.apache.org/thread.html/r37e6b2165f7c910d8e15fd54f4697857619ad26...
https://lists.apache.org/thread.html/r4d4966221ca399ce948ef34884652265729d7d9...
https://lists.apache.org/thread.html/r6fc5c57b38e93e36213e9a18c8a4e5dbd5ced1c...
https://lists.apache.org/thread.html/rf232eecd47fdc44520192810560303073cefd68...
https://lists.apache.org/thread.html/rf318aeeb4d7a3a312734780b47de83cefb7e699...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://security.netapp.com/advisory/ntap-20210708-0006/
https://support.f5.com/csp/article/K12331123%2C
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpujan2022.html
https://www.oracle.com/security-alerts/cpuoct2021.html
Source Url

Alert History

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Date Informations
2024-11-28 13:52:59
  • Multiple Updates
2023-11-07 21:34:51
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2022-10-25 01:57:45
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2022-10-06 02:00:52
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2022-09-14 21:27:32
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2022-07-12 21:27:42
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2022-06-08 01:55:32
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2022-05-10 21:23:08
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2022-04-20 09:23:19
  • Multiple Updates
2022-04-01 00:23:14
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2022-02-07 21:23:17
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2021-12-09 00:23:12
  • Multiple Updates
2021-11-11 12:45:13
  • Multiple Updates
2021-11-11 01:45:01
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2021-11-02 01:45:58
  • Multiple Updates
2021-10-20 17:23:14
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2021-10-14 21:23:29
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2021-08-05 01:42:14
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2021-07-08 12:41:07
  • Multiple Updates
2021-06-29 17:22:57
  • Multiple Updates
2021-06-11 09:22:52
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2021-06-10 21:23:14
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2021-06-09 13:22:47
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2021-06-09 01:39:57
  • Multiple Updates
2021-06-09 01:39:24
  • Multiple Updates
2021-06-08 17:22:46
  • Multiple Updates
2021-06-08 12:39:10
  • Multiple Updates
2021-06-03 01:40:15
  • Multiple Updates
2021-06-03 01:39:39
  • Multiple Updates
2021-06-02 17:22:46
  • Multiple Updates
2021-06-01 17:22:49
  • First insertion