Vulnerabilities > CVE-2022-1158 - Use After Free vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
A flaw was found in KVM. When updating a guest's page table entry, vm_pgoff was improperly used as the offset to get the page's pfn. As vaddr and vm_pgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and potentially corrupt the kernel, resulting in a denial of service condition.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2069793
- https://bugzilla.redhat.com/show_bug.cgi?id=2069793
- https://security.netapp.com/advisory/ntap-20230214-0003/
- https://security.netapp.com/advisory/ntap-20230214-0003/
- https://www.openwall.com/lists/oss-security/2022/04/08/4
- https://www.openwall.com/lists/oss-security/2022/04/08/4