QID 352387

Date Published: 2021-06-24

QID 352387: Amazon Linux Security Advisory for python-pip: ALAS2-2021-1667

<DIV ID="issue_overview"> the urllib3 library 1.26.x before 1.26.4 for python omits ssl certificate validation in some cases involving https to https proxies.
The initial connection to the https proxy (if an sslcontext isn't given via proxy_config) doesn't verify the hostname of the certificate.
This means certificates for different servers that still validate properly with the default urllib3 sslcontext will be silently accepted. (
cve-2021-28363 ) </DIV>

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Allows unauthorized disclosure of information; allows unauthorized modification; allows disruption of service.

  • CVSS V3 rated as High - 6.5 severity.
  • CVSS V2 rated as High - 6.4 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2021-1667 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 352387

    CVE-2021-28363 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2021-1667 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2021-1667.html
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