QID 355386

Date Published: 2023-06-14

QID 355386: Amazon Linux Security Advisory for mod_auth_mellon : ALAS2-2023-2077

A flaw was found in mod_auth_mellon where it does not sanitize logout urls properly.
This issue could be used by an attacker to facilitate phishing attacks by tricking users into visiting a trusted web application url that redirects to an external and potentially malicious server.
The highest threat from this liability is to confidentiality and integrity. (
( CVE-2021-3639)



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.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as High - 6.1 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2023-2077 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 355386

    CVE-2021-3639 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2023-2077 amazon linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2023-2077.html
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