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amazonAmazonALAS-2023-2342
HistoryNov 09, 2023 - 7:19 p.m.

Medium: amazon-efs-utils

2023-11-0919:19:00
alas.aws.amazon.com
4
amazon elastic file system
tls mount
race condition
vulnerability
update
yum

4.2 Medium

CVSS3

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

4.2 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

36.0%

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

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

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

New Packages:

noarch:  
    amazon-efs-utils-1.35.0-1.amzn2.noarch  
  
src:  
    amazon-efs-utils-1.35.0-1.amzn2.src  

Additional References

Red Hat: CVE-2022-46174

Mitre: CVE-2022-46174

OSVersionArchitecturePackageVersionFilename
Amazon Linux2noarchamazon-efs-utils< 1.35.0-1.amzn2amazon-efs-utils-1.35.0-1.amzn2.noarch.rpm

4.2 Medium

CVSS3

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

4.2 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

36.0%