CVE-2022-46174

Race condition during concurrent TLS mounts in efs-utils

Description

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.

Category

4.2
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: aws efs-utils
Published at:
Updated at:

References

Link Tags
https://github.com/aws/efs-utils/security/advisories/GHSA-4fv8-w65m-3932 third party advisory
https://github.com/aws/efs-utils/issues/125 third party advisory
https://github.com/aws/efs-utils/commit/f3a8f88167d55caa2f78aeb72d4dc1987a9ed62d third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-46174?
CVE-2022-46174 has been scored as a medium severity vulnerability.
How to fix CVE-2022-46174?
To fix CVE-2022-46174, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-46174 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-46174 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-46174?
CVE-2022-46174 affects aws efs-utils.
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