CVE-2021-4158 Information

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.

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=2035002 https://gitlab.com/qemu-project/qemu/-/commit/9bd6565ccee68f72d5012e24646e12a1c662827e https://access.redhat.com/security/cve/CVE-2021-4158 https://www.mail-archive.com/qemu-devel@nongnu.org/msg857944.html https://gitlab.com/qemu-project/qemu/-/issues/770