6

CVE-2021-4158

Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Qemu ≫ Qemu Version >= 6.0.0 < 7.0.0
Redhat ≫ Enterprise Linux Version9.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.38% 0.295
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 6 1.5 4
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

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