Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2019-19583 | First vendor Publication | 2019-12-11 |
| Vendor | Cve | Last vendor Modification | 2024-11-21 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 7.5 | ||
| Base Score | 7.5 | Environmental Score | 7.5 |
| impact SubScore | 3.6 | Temporal Score | 7.5 |
| Exploitabality Sub Score | 3.9 | ||
| Attack Vector | Network | Attack Complexity | Low |
| Privileges Required | None | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | None |
| Integrity Impact | None | Availability Impact | High |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 5 | Attack Range | Network |
| Cvss Impact Score | 2.9 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| An issue was discovered in Xen through 4.12.x allowing x86 HVM/PVH guest OS users to cause a denial of service (guest OS crash) because VMX VMEntry checks mishandle a certain case. Please see XSA-260 for background on the MovSS shadow. Please see XSA-156 for background on the need for #DB interception. The VMX VMEntry checks do not like the exact combination of state which occurs when #DB in intercepted, Single Stepping is active, and blocked by STI/MovSS is active, despite this being a legitimate state to be in. The resulting VMEntry failure is fatal to the guest. HVM/PVH guest userspace code may be able to crash the guest, resulting in a guest Denial of Service. All versions of Xen are affected. Only systems supporting VMX hardware virtual extensions (Intel, Cyrix, or Zhaoxin CPUs) are affected. Arm and AMD systems are unaffected. Only HVM/PVH guests are affected. PV guests cannot leverage the vulnerability. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19583 |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2024-11-28 13:30:09 |
|
| 2023-11-07 21:38:18 |
|
| 2022-04-01 00:23:23 |
|
| 2021-09-02 01:34:59 |
|
| 2021-08-05 01:33:27 |
|
| 2021-07-21 17:24:41 |
|
| 2021-05-04 13:33:47 |
|
| 2021-04-22 02:47:28 |
|
| 2021-03-27 01:30:03 |
|
| 2020-05-23 02:28:41 |
|
