CVE-2022-46174

low-risk
Published 2022-12-28

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.

Do I need to act?

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0.06% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.2/10 Medium
NETWORK / HIGH complexity

Affected Products (2)

Efs-Utils
Elastic File System Container Storage Interface Driver

Affected Vendors

Amazon

References (6)

Patch https://github.com/aws/efs-utils/commit/f3a8f88167d55caa2f78aeb72d4dc1987a9ed62d
Third Party Advisory https://github.com/aws/efs-utils/issues/125
Third Party Advisory https://github.com/aws/efs-utils/security/advisories/GHSA-4fv8-w65m-3932
Patch https://github.com/aws/efs-utils/commit/f3a8f88167d55caa2f78aeb72d4dc1987a9ed62d
Third Party Advisory https://github.com/aws/efs-utils/issues/125
Third Party Advisory https://github.com/aws/efs-utils/security/advisories/GHSA-4fv8-w65m-3932
21
/ 100
low-risk
Severity 14/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 7/34 · Low