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Red Hat: CVE-2019-19332: CVE-2019-19332 Kernel: kvm: OOB memory write via kvm_dev_ioctl_get_cpuid (Multiple Advisories)

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Red Hat: CVE-2019-19332: CVE-2019-19332 Kernel: kvm: OOB memory write via kvm_dev_ioctl_get_cpuid (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:C)
Published
01/09/2020
Created
10/01/2020
Added
10/01/2020
Modified
03/13/2024

Description

An out-of-bounds memory write issue was found in the Linux Kernel, version 3.13 through 5.4, in the way the Linux kernel's KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could use this flaw to crash the system, resulting in a denial of service.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2019-19332
  • RHSA-2020:4060
  • RHSA-2020:4062
  • RHSA-2020:4431
  • RHSA-2020:4609

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