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CentOS Linux: CVE-2022-1158: Moderate: kernel-rt security and bug fix update (Multiple Advisories)

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CentOS Linux: CVE-2022-1158: Moderate: kernel-rt security and bug fix update (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/05/2022
Created
02/14/2023
Added
02/13/2023
Modified
05/25/2023

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.

Solution(s)

  • centos-upgrade-kernel
  • centos-upgrade-kernel-rt

References

  • CVE-2022-1158

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