QID 352483

Date Published: 2021-07-14

QID 352483: Amazon Linux Security Advisory for bind: ALAS-2021-1508

a flaw was found in bind.
The way dname records are processed may trigger the same rrset to the answer section to be added more than once which causes an assertion check to fail.
The highest threat from this flaw is to system availability. (
cve-2021-25215 )



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 - 7.5 severity.
  • CVSS V2 rated as Medium - 5 severity.
    • Solution
    Please refer to Amazon advisory: ALAS-2021-1508 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 352483

    CVE-2021-25215 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS-2021-1508 Amazon Linux URL Logo alas.aws.amazon.com/ALAS-2021-1508.html
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