CVE-2021-4158

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

6.0 /10

CVSS v3 : 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://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
Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

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

25 Jan 2024, 21:29

Type Values Removed Values Added
References () https://www.mail-archive.com/qemu-devel%40nongnu.org/msg857944.html - () https://www.mail-archive.com/qemu-devel%40nongnu.org/msg857944.html - Patch, Third Party Advisory

12 Feb 2023, 23:43

Type Values Removed Values Added
References
  • {'url': 'https://access.redhat.com/errata/RHSA-2022:7967', 'name': 'https://access.redhat.com/errata/RHSA-2022:7967', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/errata/RHSA-2022:1759', 'name': 'https://access.redhat.com/errata/RHSA-2022:1759', 'tags': [], 'refsource': 'MISC'}

02 Feb 2023, 21:21

Type Values Removed Values Added
References
  • {'url': 'https://www.mail-archive.com/qemu-devel@nongnu.org/msg857944.html', 'name': 'https://www.mail-archive.com/qemu-devel@nongnu.org/msg857944.html', 'tags': ['Mailing List', 'Patch', 'Third Party Advisory'], 'refsource': 'MISC'}
  • (MISC) https://www.mail-archive.com/qemu-devel%40nongnu.org/msg857944.html -
  • (MISC) https://access.redhat.com/errata/RHSA-2022:7967 -
  • (MISC) https://access.redhat.com/errata/RHSA-2022:1759 -

29 Aug 2022, 13:38

Type Values Removed Values Added
CPE cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
CWE CWE-476
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 6.0
First Time Redhat
Qemu
Redhat enterprise Linux
Qemu qemu
References (MISC) https://access.redhat.com/security/cve/CVE-2021-4158 - (MISC) https://access.redhat.com/security/cve/CVE-2021-4158 - Third Party Advisory
References (MISC) https://www.mail-archive.com/qemu-devel@nongnu.org/msg857944.html - (MISC) https://www.mail-archive.com/qemu-devel@nongnu.org/msg857944.html - Mailing List, Patch, Third Party Advisory
References (MISC) https://gitlab.com/qemu-project/qemu/-/commit/9bd6565ccee68f72d5012e24646e12a1c662827e - (MISC) https://gitlab.com/qemu-project/qemu/-/commit/9bd6565ccee68f72d5012e24646e12a1c662827e - Patch, Third Party Advisory
References (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=2035002 - (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=2035002 - Issue Tracking, Patch, Third Party Advisory
References (MISC) https://gitlab.com/qemu-project/qemu/-/issues/770 - (MISC) https://gitlab.com/qemu-project/qemu/-/issues/770 - Exploit, Third Party Advisory

24 Aug 2022, 16:24

Type Values Removed Values Added
New CVE
Information

Published : 2022-08-24 16:15

Updated : 2024-01-25 21:29

NVD link : CVE-2021-4158

Mitre link : CVE-2021-4158

CVE.ORG link : CVE-2021-4158

JSON object : View

Products Affected

qemu

  • qemu

redhat

  • enterprise_linux
CWE
CWE-476

NULL Pointer Dereference