QID 353143

Date Published: 2022-02-01

QID 353143: Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-008

A flaw was found in the linux kernel.
When reusing a socket with an attached dccps_hc_tx_ccid as a listener, the socket will be used after being released leading to denial of service (dos) or a potential code execution.
The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (
( CVE-2020-16119) a vulnerability was found in the linux kernel.
Missing size validations on inbound sctp packets may allow the kernel to read uninitialized memory. (
( CVE-2021-3655)



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 - 7.8 severity.
  • CVSS V2 rated as Medium - 4.6 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2KERNEL-5.4-2022-008 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 353143

    CVE-2021-3655 | CVE-2020-16119 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2KERNEL-5.4-2022-008 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALASKERNEL-5.4-2022-008.html
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