Files or Directories Accessible to External Parties Affecting libfdisk-debuginfo package, versions <0:2.37.4-1.amzn2023.0.3


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-AMZN2023-LIBFDISKDEBUGINFO-3340428
  • published6 Mar 2023
  • disclosed23 Aug 2022

Introduced: 23 Aug 2022

CVE-2021-3995  (opens in a new tab)
CWE-552  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 libfdisk-debuginfo to version 0:2.37.4-1.amzn2023.0.3 or higher.
This issue was patched in ALAS2023-2023-024.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libfdisk-debuginfo package and not the libfdisk-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A logic error was found in the libmount library of util-linux in the function that allows an unprivileged user to unmount a FUSE filesystem. This flaw allows an unprivileged local attacker to unmount FUSE filesystems that belong to certain other users who have a UID that is a prefix of the UID of the attacker in its string form. An attacker may use this flaw to cause a denial of service to applications that use the affected filesystems.

CVSS Scores

version 3.1