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CVE-2021-4158 Detail

Description

A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/security/cve/CVE-2021-4158 Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2035002 Issue Tracking  Patch  Third Party Advisory 
https://gitlab.com/qemu-project/qemu/-/commit/9bd6565ccee68f72d5012e24646e12a1c662827e Patch  Third Party Advisory 
https://gitlab.com/qemu-project/qemu/-/issues/770 Exploit  Third Party Advisory 
https://www.mail-archive.com/qemu-devel%40nongnu.org/msg857944.html Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-476 NULL Pointer Dereference cwe source acceptance level NIST   Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-4158
NVD Published Date:
08/24/2022
NVD Last Modified:
01/25/2024
Source:
Red Hat, Inc.