Information Exposure Affecting perf package, versions <0:3.10.0-1160.el7


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-CENTOS7-PERF-2174661
  • published26 Jul 2021
  • disclosed24 Feb 2020

Introduced: 24 Feb 2020

CVE-2020-2732  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Centos:7 perf to version 0:3.10.0-1160.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest.

CVSS Scores

version 3.1