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CVE-2022-1158

nvd nist
Published: Aug 5, 2022Modified: Nov 21, 2024

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7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: NVD

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.

Affected (8)

Linux
1 product
Linux Kernel
Fedoraproject
1 product
Fedora
Redhat
1 product
Enterprise Linux
Configuration A
5 vulnerable
Vulnerable SoftwareAffected Versions
Linux
Linux Kernel
From 5.11 to 5.15.33
Linux Kernel
From 5.16 to 5.16.19
Linux Kernel
From 5.17 to 5.17.2
Linux Kernel
From 5.2 to 5.4.189
Linux Kernel
From 5.5 to 5.10.110
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Fedora
Version 36
Configuration C
2 vulnerable
Vulnerable SoftwareAffected Versions
Redhat
Enterprise Linux
Version 8.0
Enterprise Linux
Version 9.0

Related CWEs

CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (6)

Source: secalert@redhat.com
ExploitIssue TrackingThird Party Advisory
Source: secalert@redhat.com
Third Party Advisory
Source: secalert@redhat.com
ExploitMailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitMailing ListThird Party Advisory

Timeline

No history available yet.