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Vulnerability & Exploit Database

Vulnerabilities and exploits collected over reliable resources for security professionals and researchers to review

Amazon Linux AMI: CVE-2021-23017: Security patch for nginx (ALAS-2021-1507)

Severity:
4
CVSS:
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published:
05/26/2021
Created:
06/04/2021
Added:
06/03/2021
Modified:
06/03/2021

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)


  • amazon-linux-upgrade-nginx

Reference(s)

  • CVE-2021-20191
  • ALAS-2021-1507
  • CVE-2021-23017
  • USN-4967-1
  • USN-4967-2
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