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CVE-2022-1158 Detail

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.


Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  N/A
NVD score not yet provided.


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

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Hyperlink Resource
https://bugzilla.redhat.com/show_bug.cgi?id=2069793
https://www.openwall.com/lists/oss-security/2022/04/08/4

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free Contributor acceptance level Red Hat, Inc.  

Change History

0 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-1158
NVD Published Date:
08/05/2022
NVD Last Modified:
08/05/2022
Source:
Red Hat, Inc.