CVE-2021-4158

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.

CVSS v3.0 6.0 MEDIUM

6.0^/10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.5 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
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://access.redhat.com/security/cve/CVE-2021-4158	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

Configurations

Configuration 1 (hide)

cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

Information

Published : 2022-08-24 09:15

Updated : 2023-02-12 15:43

NVD link : CVE-2021-4158

Mitre link : CVE-2021-4158

JSON object : View

CWE

CWE-476

NULL Pointer Dereference

Products Affected

redhat

enterprise_linux

qemu

qemu

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6.0 /10