UBUNTU-CVE-2021-4032
Dashboard / Vulnerabilities / UBUNTU-CVE-2021-4032
Summary:
Details: A vulnerability was found in the Linux kernel's KVM subsystem in arch/x86/kvm/lapic.c kvm_free_lapic when a failure allocation was detected. In this flaw the KVM subsystem may crash the kernel due to mishandling of memory errors that happens during VCPU construction, which allows an attacker with special user privilege to cause a denial of service. This flaw affects kernel versions prior to 5.15 rc7.
References: https://ubuntu.com/security/CVE-2021-4032, https://access.redhat.com/security/cve/CVE-2021-4032, https://www.cve.org/CVERecord?id=CVE-2021-4032
Affected packages
Package
Name: linux-hwe-edge
Purl: pkg:deb/ubuntu/[email protected]~16.04.1?arch=source&distro=xenial
Affected ranges
Type: ECOSYSTEM
Events:
Introduced- 0
Fixed -None
Affected versions
4.8.0-28.30~16.04.1
4.8.0-30.32~16.04.1
4.8.0-32.34~16.04.1
4.8.0-34.36~16.04.1
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
