Insecure Default Affecting torvalds/linux package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.05% (14th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3004987
  • published26 Jan 2022
  • disclosed24 Apr 2020
  • creditUnknown

Introduced: 24 Apr 2020

CVE-2019-15793  (opens in a new tab)
CWE-276  (opens in a new tab)

How to fix?

There is no fixed version for torvalds/linux.

Overview

Affected versions of this package are vulnerable to Insecure Default. In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, several locations which shift ids translate user/group ids before performing operations in the lower filesystem were translating them into init_user_ns, whereas they should have been translated into the s_user_ns for the lower filesystem. This resulted in using ids other than the intended ones in the lower fs, which likely did not map into the shifts s_user_ns. A local attacker could use this to possibly bypass discretionary access control permissions.

CVSS Base Scores

version 3.1