Access Restriction Bypass Affecting torvalds/linux package, versions [,4.9.5)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

EPSS
0.07% (22nd percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3004861
  • published26 Jan 2022
  • disclosed6 Feb 2017
  • creditUnknown

Introduced: 6 Feb 2017

CVE-2017-2583  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 4.9.5 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass. The load_segment_descriptor implementation in arch/x86/kvm/emulate.c in the Linux kernel before 4.9.5 improperly emulates a "MOV SS, NULL selector" instruction, which allows guest OS users to cause a denial of service (guest OS crash) or gain guest OS privileges via a crafted application.

CVSS Base Scores

version 3.1