Vulnerability · Published Dec 28, 2022 · Assigned by GitHub_M
CVE-2022-46174Race condition during concurrent TLS mounts in efs-utils
Medium 4.2
In plain English
A medium-severity race condition in efs-utils from aws. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/kubernetes-sigs/aws-efs-csi-driver | 1.4.8 | GHSA-4fv8-w65m-3932 |
Affected products (as reported)
Weakness: CWE-362 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
References
- https://github.com/aws/efs-utils/security/advisories/GHSA-4fv8-w65m-3932 x_refsource_CONFIRM
- https://github.com/aws/efs-utils/issues/125 x_refsource_MISC
- https://github.com/aws/efs-utils/commit/f3a8f88167d55caa2f78aeb72d4dc1987a9ed62d x_refsource_MISC