Information Exposure Affecting torvalds/linux package, versions [,5.8.0)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006652
  • published26 Jan 2022
  • disclosed15 Sept 2020
  • creditUnknown

Introduced: 15 Sep 2020

CVE-2020-10767  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 5.8.0 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure. A flaw was found in the Linux kernel before 5.8-rc1 in the implementation of the Enhanced IBPB (Indirect Branch Prediction Barrier). The IBPB mitigation will be disabled when STIBP is not available or when the Enhanced Indirect Branch Restricted Speculation (IBRS) is available. This flaw allows a local attacker to perform a Spectre V2 style attack when this configuration is active. The highest threat from this vulnerability is to confidentiality.

References

CVSS Base Scores

version 3.1