CVE-2022-1158
Last modified
CVE-2022-1158 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 0.39% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.2, < 5.4.189 |
| Linux | Linux Kernel | >= 5.5, < 5.10.110 |
| Linux | Linux Kernel | >= 5.11, < 5.15.33 |
| Linux | Linux Kernel | >= 5.16, < 5.16.19 |
| Linux | Linux Kernel | >= 5.17, < 5.17.2 |
| Fedoraproject | Fedora | 36 |
| Redhat | Enterprise Linux | 8.0 |
| Redhat | Enterprise Linux | 9.0 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2069793Exploit, Issue Tracking, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230214-0003/Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/04/08/4Exploit, Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2069793Exploit, Issue Tracking, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230214-0003/Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/04/08/4Exploit, Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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