Ubuntu.comUB:CVE-2021-4158CVE-2021-4158
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
0.001 Low
EPSS
Percentile
32.7%
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.
Bugs
- <https://bugzilla.redhat.com/show_bug.cgi?id=2035002>
- <https://gitlab.com/qemu-project/qemu/-/issues/770>
Notes
| Author | Note |
|---|---|
| mdeslaur | introduced in 6.0.0 |
References
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
Related
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
0.001 Low
EPSS
Percentile
32.7%