Buffer overflow in Linux Kernel
CVE-2019-19332
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.
Vulnerability class: Buffer Overflow
EPSS: 0.007 (48.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H.
Affected products
- Linux Kernel — versions 3.13 through 5.4
- Linux Linux_kernel
- Redhat Enterprise_linux — versions 7.0, 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_CONFIRM, Exploit, Patch, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (Exploit, Mailing List, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (x_refsource_MISC)
- secalert@redhat.com (Patch, VDB Entry, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory)
- secalert@redhat.com (x_refsource_CONFIRM)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory)
Frequently asked questions
- What is CVE-2019-19332?
- CVE-2019-19332 is a medium-severity vulnerability in Linux Kernel, classified under Out-of-bounds Write. CVSS score: 6.1/10. Published 2020-01-09.
- How severe is CVE-2019-19332?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2019-19332 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.