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amazonAmazonALAS-2023-1889
HistoryNov 10, 2023 - 5:32 p.m.

Medium: amazon-efs-utils

2023-11-1017:32:00
alas.aws.amazon.com
8
amazon elastic file system
tls
mount helper
security issue
patched version
update
cve-2022-46174

CVSS3

4.2

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L

AI Score

6.9

Confidence

Low

EPSS

0.001

Percentile

39.9%

Issue Overview:

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. (CVE-2022-46174)

Affected Packages:

amazon-efs-utils

Issue Correction:
Run yum update amazon-efs-utils to update your system.

New Packages:

noarch:  
    amazon-efs-utils-1.35.0-1.amzn1.noarch  
  
src:  
    amazon-efs-utils-1.35.0-1.amzn1.src  

Additional References

Red Hat: CVE-2022-46174

Mitre: CVE-2022-46174

OSVersionArchitecturePackageVersionFilename
Amazon Linux1noarchamazon-efs-utils< 1.35.0-1.amzn1amazon-efs-utils-1.35.0-1.amzn1.noarch.rpm

CVSS3

4.2

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L

AI Score

6.9

Confidence

Low

EPSS

0.001

Percentile

39.9%