QID 352390

Date Published: 2021-06-24

QID 352390: Amazon Linux Security Advisory for nss: ALAS2-2021-1664

<DIV ID="issue_overview"> a flaw was found in the way nss handled ccs (changecipherspec) messages in tls 1.3.
This flaw allows a remote attacker to send multiple ccs messages, causing a denial of service for servers compiled with the nss library.
The highest threat from this vulnerability is to system availability. (
cve-2020-25648 ) </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 - 7.5 severity.
  • CVSS V2 rated as Medium - 5 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2021-1664 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 352390

    CVE-2020-25648 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2021-1664 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2021-1664.html
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