<p>Upgrade <code>RHEL:8</code> <code>perf</code> to version 0:4.18.0-240.el8 or higher.<br>This issue was patched in <code>RHSA-2020:4431</code>.</p>

Out-of-bounds Write Affecting perf package, versions <0:4.18.0-240.el8

Threat Intelligence

0.07% (30^th percentile)

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Snyk ID SNYK-RHEL8-PERF-3831662
published 26 Jul 2021
disclosed 3 Dec 2019

Report a new vulnerability Found a mistake?

Introduced: 3 Dec 2019

CVE-2019-19332 Open this link in a new tab CWE-787 Open this link in a new tab

How to fix?

Upgrade RHEL:8 perf to version 0:4.18.0-240.el8 or higher.
This issue was patched in RHSA-2020:4431.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

An out-of-bounds memory write issue was found in the Linux Kernel, version 3.13 through 5.4, in the way the Linux kernel's KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could use this flaw to crash the system, resulting in a denial of service.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Local
Attack Complexity (AC)

Low
Privileges Required (PR)

Low
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

None
Integrity (I)

Low
Availability (A)

High