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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| aws | efs-utils | < v1.34.4 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | aws-efs-utils | 1.34.5-150100.4.11.1 | SUSE-SU-2023:0423-1 |
| SLES 15 SP3 | aws-efs-utils | 1.34.5-150100.4.11.1 | SUSE-SU-2023:0423-1 |
| SLES 15 SP2 | aws-efs-utils | 1.34.5-150100.4.11.1 | SUSE-SU-2023:0423-1 |
| SLES 15 SP1 | aws-efs-utils | 1.34.5-150100.4.11.1 | SUSE-SU-2023:0423-1 |
| SLES 12 | aws-efs-utils | 1.7-1.6.1 | SUSE-SU-2023:1761-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | aws-efs-utils | 1.34.5-1.1 | openSUSE-SU-2024:12639-1 |
| openSUSE Leap 15.4 | aws-efs-utils | 1.34.5-150100.4.11.1 | SUSE-SU-2023:0423-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | amazon-efs-utils | 1.35.0-1.amzn2023 | ALAS2023-2023-437 |
| Amazon Linux 2 | amazon-efs-utils | 1.35.0-1.amzn2 | ALAS2-2023-2342 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/kubernetes-sigs/aws-efs-csi-driver | < 1.4.8 | 1.4.8 | GHSA-4fv8-w65m-3932 |
Advisories 6
- SUSE-SU-2023:1761-1 Security update for aws-efs-utils.11048 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12639-1 aws-efs-utils-1.34.5-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0423-1 Security update for aws-efs-utils SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-0224 Red Hat OpenShift: Mehrere Schwachstellen ermöglichen Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Nov 15, 2023
- ALAS2-2023-2342 Moderate: amazon-efs-utils security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Nov 15, 2023
- ALAS2023-2023-437 Moderate: amazon-efs-utils security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Nov 14, 2023