UBUNTU-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.
02 / AFFECTED SOFTWARE
Affected packages
73 explicit affected versions
33 explicit affected versions
3 explicit affected versions
12 explicit affected versions
6 explicit affected versions
191 explicit affected versions
38 explicit affected versions
19 explicit affected versions
1 explicit affected versions
44 explicit affected versions
23 explicit affected versions
1 explicit affected versions
1 explicit affected versions
3 explicit affected versions
1 explicit affected versions
41 explicit affected versions
10 explicit affected versions
10 explicit affected versions
19 explicit affected versions
40 explicit affected versions
18 explicit affected versions
3 explicit affected versions
1 explicit affected versions
36 explicit affected versions
1 explicit affected versions
15 explicit affected versions
23 explicit affected versions
11 explicit affected versions
75 explicit affected versions
2 explicit affected versions
39 explicit affected versions
43 explicit affected versions
104 explicit affected versions
51 explicit affected versions
52 explicit affected versions
1 explicit affected versions
1 explicit affected versions
62 explicit affected versions
21 explicit affected versions
39 explicit affected versions
5 explicit affected versions
26 explicit affected versions
1 explicit affected versions
34 explicit affected versions
82 explicit affected versions
65 explicit affected versions
17 explicit affected versions
29 explicit affected versions
22 explicit affected versions
12 explicit affected versions
4 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/433f4ba1904100da65a311033f17a9bf586b287e
- https://ubuntu.com/security/CVE-2019-19332
- https://ubuntu.com/security/notices/USN-4254-1
- https://ubuntu.com/security/notices/USN-4254-2
- https://ubuntu.com/security/notices/USN-4258-1
- https://ubuntu.com/security/notices/USN-4284-1
- https://ubuntu.com/security/notices/USN-4287-1
- https://ubuntu.com/security/notices/USN-4287-2
- https://www.cve.org/CVERecord?id=CVE-2019-19332