6 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
1.4 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
MULTIPLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:M/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
31.6%
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.
Author | Note |
---|---|
mdeslaur | introduced in 6.0.0 |
launchpad.net/bugs/cve/CVE-2021-4158
lists.nongnu.org/archive/html/qemu-devel/2021-12/msg03692.html
nvd.nist.gov/vuln/detail/CVE-2021-4158
security-tracker.debian.org/tracker/CVE-2021-4158
ubuntu.com/security/notices/USN-5307-1
www.cve.org/CVERecord?id=CVE-2021-4158
www.mail-archive.com/[email protected]/msg857944.html
6 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
1.4 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
MULTIPLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:M/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
31.6%