Directory Traversal Affecting torvalds/linux package, versions [,5.6)


Severity

Recommended
0.0
medium
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-3006175
  • published26 Jan 2022
  • disclosed28 Nov 2020
  • creditUnknown

Introduced: 28 Nov 2020

CVE-2020-29373  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 5.6 or higher.

Overview

Affected versions of this package are vulnerable to Directory Traversal. An issue was discovered in fs/io_uring.c in the Linux kernel before 5.6. It unsafely handles the root directory during path lookups, and thus a process inside a mount namespace can escape to unintended filesystem locations, aka CID-ff002b30181d.

References

CVSS Base Scores

version 3.1