QID 354913

Date Published: 2023-05-03

QID 354913: Amazon Linux Security Advisory for kernel : ALAS2-2023-2027

An out-of-bounds memory access flaw was found in the linux kernel's xfs file system in how a user restores an xfs image after failure (with a dirty log journal).
This flaw allows a local user to crash or potentially escalate their privileges on the system. (
( CVE-2023-2124) cbq_classify in net/sched/sch_cbq.c in the linux kernel through 6.1.4 allows attackers to cause a denial of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes indicate a tc_act_shot condition rather than valid classification results). (
( CVE-2023-23454)



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 Medium - 5.5 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2023-2027 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 354913

    CVE-2023-2124 | CVE-2023-23454 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2023-2027 amazon linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2023-2027.html
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