QID 356741

Date Published: 2023-11-16

QID 356741: Amazon Linux Security Advisory for amazon-efs-utils : ALAS2-2023-2342

Efs-utils is a set of utilities for amazon elastic file system (efs).
A potential race condition issue exists within the amazon efs mount helper in efs-utils versions v1.34.3 and below.
When using tls to mount file systems, the mount helper allocates a local port for stunnel to receive nfs connections prior to applying the tls tunnel.
In affected versions, concurrent mount operations can allocate the same local port, leading to either failed mount operations or an inappropriate mapping from an efs customer's local mount points to that customer's efs file systems.
This issue is patched in version v1.34.4.
There is no recommended work around.
We recommend affected users update the installed version of efs-utils to v1.34.4 or later. (
( CVE-2022-46174)



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 - 4.2 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
  • Solution
    Please refer to Amazon advisory: ALAS2-2023-2342 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 356741

    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2023-2342 amazon linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2023-2342.html

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