Access Restriction Bypass Affecting fuse-devel package, versions <0:2.9.4-1.17.amzn1


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
1.01% (59th percentile)

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  • Snyk IDSNYK-AMZN201803-FUSEDEVEL-1687124
  • published27 Sept 2021
  • disclosed2 Jul 2015

Introduced: 2 Jul 2015

CVE-2015-3202  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 fuse-devel to version 0:2.9.4-1.17.amzn1 or higher.
This issue was patched in ALAS-2015-558.

NVD Description

Note: Versions mentioned in the description apply only to the upstream fuse-devel package and not the fuse-devel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

fusermount in FUSE before 2.9.3-15 does not properly clear the environment before invoking (1) mount or (2) umount as root, which allows local users to write to arbitrary files via a crafted LIBMOUNT_MTAB environment variable that is used by mount's debugging feature.

CVSS Base Scores

version 3.1