Information Exposure Affecting torvalds/linux package, versions [5.19-rc7,6.3-rc1)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-5425108
  • published17 Apr 2023
  • disclosed17 Apr 2023
  • creditRodrigo Rubira Branco, José Luiz

Introduced: 17 Apr 2023

CVE-2023-1998  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 6.3-rc1 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure in the form of kernel read and write operations being exposed to userspace when IBRS (not eIBRS) is in use. This is a bypass for mitigations put in place against Spectre V2 attacks.

CVSS Base Scores

version 3.1