CVE-2022-46174
Race condition during concurrent TLS mounts in efs-utils
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Race condition during concurrent TLS mounts in efs-utils
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.
- Record
CVE-2022-46174- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-362
- Updated
- 2026-11-02
EUVDEUVD-2022-7502
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.
- Record
EUVD-2022-7502- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4fv8-w65m-3932
efs-utils and aws-efs-csi-driver have race condition during concurrent TLS mounts
Impact
A potential race condition issue exists within the Amazon EFS mount helper in efs-utils versions v1.34.3 and below, and aws-efs-csi-driver versions v1.4.7 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.
Affected versions: efs-utils <= v1.34.3, aws-efs-csi-driver <= v1.4.7
Patches
The patches are included in efs-utils version v1.34.4 and newer, and in aws-efs-csi-driver v1.4.8 and newer.
Workarounds
There is no recommended work around. We recommend affected users update the installed version of efs-utils to v1.34.4+ or aws-efs-csi-driver to v1.4.8+ to address this issue.
References
https://github.com/aws/efs-utils/commit/f3a8f88167d55caa2f78aeb72d4dc1987a9ed62d https://github.com/aws/efs-utils/issues/125 https://github.com/kubernetes-sigs/aws-efs-csi-driver/issues/282 https://github.com/kubernetes-sigs/aws-efs-csi-driver/issues/635
- Record
GHSA-4fv8-w65m-3932- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-362
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2022-46174- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-362
- Updated
- 2026-11-02
OSV
Race condition during concurrent TLS mounts in efs-utils
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.
- Record
CVE-2022-46174- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-362
- Updated
- 2026-11-02
OSVGHSA-4fv8-w65m-3932
efs-utils and aws-efs-csi-driver have race condition during concurrent TLS mounts
Impact
A potential race condition issue exists within the Amazon EFS mount helper in efs-utils versions v1.34.3 and below, and aws-efs-csi-driver versions v1.4.7 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.
Affected versions: efs-utils <= v1.34.3, aws-efs-csi-driver <= v1.4.7
Patches
The patches are included in efs-utils version v1.34.4 and newer, and in aws-efs-csi-driver v1.4.8 and newer.
Workarounds
There is no recommended work around. We recommend affected users update the installed version of efs-utils to v1.34.4+ or aws-efs-csi-driver to v1.4.8+ to address this issue.
References
https://github.com/aws/efs-utils/commit/f3a8f88167d55caa2f78aeb72d4dc1987a9ed62d https://github.com/aws/efs-utils/issues/125 https://github.com/kubernetes-sigs/aws-efs-csi-driver/issues/282 https://github.com/kubernetes-sigs/aws-efs-csi-driver/issues/635
- Record
GHSA-4fv8-w65m-3932- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-362
- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:12639-1 No score
aws-efs-utils-1.34.5-1.1 on GA media
These are all security issues fixed in the aws-efs-utils-1.34.5-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:12639-1- Updated
- 2026-11-02
OSVSUSE-SU-2023:0423-1 No score
Security update for aws-efs-utils
This update for aws-efs-utils fixes the following issues:
- Updated to version 1.34.5:
- CVE-2022-46174: Fixed a race condition when mounting filesystems using TLS, which could result in various failures (bsc#1206737).
- Record
SUSE-SU-2023:0423-1- Updated
- 2026-11-02
OSVSUSE-SU-2023:1761-1 No score
Security update for aws-efs-utils.11048
This update for aws-efs-utils.11048 fixes the following issues:
- CVE-2022-46174: Fixed potential tlsport selection collision by using state file as tlsport lock file (bsc#1206737).
- Record
SUSE-SU-2023:1761-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/kubernetes-sigs/aws-efs-csi-driverGo |
through 1.4.7 | 1.4.8 |
github.com/kubernetes-sigs/aws-efs-csi-driverGo |
before 1.4.8 | 1.4.8 |
aws-efs-utilsSUSE:Linux Enterprise Module for Public Cloud 15 SP1 |
before 1.34.5-150100.4.11.1 | 1.34.5-150100.4.11.1 |
aws-efs-utilsSUSE:Linux Enterprise Module for Public Cloud 15 SP2 |
before 1.34.5-150100.4.11.1 | 1.34.5-150100.4.11.1 |
aws-efs-utilsSUSE:Linux Enterprise Module for Public Cloud 15 SP3 |
before 1.34.5-150100.4.11.1 | 1.34.5-150100.4.11.1 |
aws-efs-utilsSUSE:Linux Enterprise Module for Public Cloud 15 SP4 |
before 1.34.5-150100.4.11.1 | 1.34.5-150100.4.11.1 |
aws-efs-utilsopenSUSE:Leap 15.4 |
before 1.34.5-150100.4.11.1 | 1.34.5-150100.4.11.1 |
aws-efs-utilsSUSE:Linux Enterprise Module for Public Cloud 12 |
before 1.7-1.6.1 | 1.7-1.6.1 |
aws-efs-utilsopenSUSE:Tumbleweed |
before 1.34.5-1.1 | 1.34.5-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-46174 is a medium vulnerability (CVSS 4.2) in Amazon Efs-utils, published December 28, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.64%, the 50th percentile. Fixed in github.com/kubernetes-sigs/aws-efs-csi-driver 1.4.8.
References
github.com/aws/efs-utils/security/advisories/GHSA-4fv8-w65m-3932
nvd.nist.gov/vuln/detail/CVE-2022-46174