Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2020-25604 | First vendor Publication | 2020-09-23 |
| Vendor | Cve | Last vendor Modification | 2023-11-07 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 4.7 | ||
| Base Score | 4.7 | Environmental Score | 4.7 |
| impact SubScore | 3.6 | Temporal Score | 4.7 |
| Exploitabality Sub Score | 1 | ||
| Attack Vector | Local | Attack Complexity | High |
| Privileges Required | Low | 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:L/AC:M/Au:N/C:N/I:N/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 1.9 | Attack Range | Local |
| Cvss Impact Score | 2.9 | Attack Complexity | Medium |
| Cvss Expoit Score | 3.4 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| An issue was discovered in Xen through 4.14.x. There is a race condition when migrating timers between x86 HVM vCPUs. When migrating timers of x86 HVM guests between its vCPUs, the locking model used allows for a second vCPU of the same guest (also operating on the timers) to release a lock that it didn't acquire. The most likely effect of the issue is a hang or crash of the hypervisor, i.e., a Denial of Service (DoS). All versions of Xen are affected. Only x86 systems are vulnerable. Arm systems are not vulnerable. Only x86 HVM guests can leverage the vulnerability. x86 PV and PVH cannot leverage the vulnerability. Only guests with more than one vCPU can exploit the vulnerability. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25604 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-362 | Race Condition |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2023-11-07 21:36:38 |
|
| 2023-08-02 01:53:31 |
|
| 2022-09-30 09:27:48 |
|
| 2021-09-02 01:39:29 |
|
| 2021-05-05 01:39:08 |
|
| 2021-05-04 13:50:44 |
|
| 2021-04-22 03:02:03 |
|
| 2021-03-27 01:34:08 |
|
| 2021-02-05 01:31:31 |
|
| 2020-11-11 12:29:36 |
|
| 2020-10-08 05:22:54 |
|
| 2020-10-04 17:22:52 |
|
| 2020-10-03 09:22:53 |
|
| 2020-10-01 12:27:53 |
|
| 2020-09-30 00:22:50 |
|
| 2020-09-27 09:22:48 |
|
| 2020-09-24 17:22:55 |
|
| 2020-09-24 05:22:57 |
|
