CVEvulnerability
CVE-2021-4158
6.0 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-08-24
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.0 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
- Weaknesses
- CWE-476
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.
Affected configurations
• qemu qemu (>= 6.0.0 < 7.0.0)
• redhat enterprise linux 9.0
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- 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
- 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