QID 356634

Date Published: 2023-11-09

QID 356634: Amazon Linux Security Advisory for kernel : ALAS2023-2023-422

A flaw in the kernel xen event handler can cause a deadlock with xen console handling in unprivileged xen guests. (
( CVE-2023-34324) an improper input validation flaw was found in the ebpf subsystem in the linux kernel.
The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied ebpf programs prior to executing them.
This may allow an attacker with cap_bpf privileges to escalate privileges and execute arbitrary code in the context of the kernel. (
( CVE-2023-39191)



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 Critical - 8.2 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2023-2023-422 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 356634

    CVE-2023-39191 | CVE-2023-34324 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2023-2023-422 amazon linux 2023 URL Logo alas.aws.amazon.com/AL2023/ALAS-2023-422.html
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