QID 355321

Date Published: 2023-06-06

QID 355321: Amazon Linux Security Advisory for qemu : ALAS2-2023-2060

An infinite loop flaw was found in the e1000 nic emulator of the qemu.
This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values.
This flaw allows a guest to consume cpu cycles on the host, resulting in a denial of service.
The highest threat from this vulnerability is to system availability. (
( CVE-2021-20257)



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 - 6.5 severity.
  • CVSS V2 rated as Low - 2.1 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2023-2060 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 355321

    CVE-2021-20257 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2023-2060 amazon linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2023-2060.html
    By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].