Access Restriction Bypass Affecting libfuse/libfuse package, versions [,2.9.6)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
1% (62nd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-LIBFUSELIBFUSE-2366180
  • published26 Jan 2022
  • disclosed2 Jul 2015
  • creditUnknown

Introduced: 2 Jul 2015

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

How to fix?

Upgrade libfuse/libfuse to version 2.9.6 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass 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