Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2020-25599 | 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:H/I:H/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 7 | ||
| Base Score | 7 | Environmental Score | 7 |
| impact SubScore | 5.9 | Temporal Score | 7 |
| Exploitabality Sub Score | 1 | ||
| Attack Vector | Local | Attack Complexity | High |
| Privileges Required | Low | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | High |
| Integrity Impact | High | Availability Impact | High |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:L/AC:M/Au:N/C:P/I:P/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 4.4 | Attack Range | Local |
| Cvss Impact Score | 6.4 | 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 are evtchn_reset() race conditions. Uses of EVTCHNOP_reset (potentially by a guest on itself) or XEN_DOMCTL_soft_reset (by itself covered by XSA-77) can lead to the violation of various internal assumptions. This may lead to out of bounds memory accesses or triggering of bug checks. In particular, x86 PV guests may be able to elevate their privilege to that of the host. Host and guest crashes are also possible, leading to a Denial of Service (DoS). Information leaks cannot be ruled out. All Xen versions from 4.5 onwards are vulnerable. Xen versions 4.4 and earlier are not vulnerable. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25599 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 50 % | CWE-362 | Race Condition |
| 50 % | CWE-119 | Failure to Constrain Operations within the Bounds of a Memory Buffer |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2023-11-07 21:36:38 |
|
| 2023-08-02 01:53:31 |
|
| 2022-04-29 02:04:40 |
|
| 2021-09-02 01:39:29 |
|
| 2021-08-05 01:38:13 |
|
| 2021-07-21 17:23:22 |
|
| 2021-05-05 01:39:02 |
|
| 2021-05-04 13:50:25 |
|
| 2021-04-22 03:02:21 |
|
| 2021-03-27 01:34:08 |
|
| 2021-02-05 01:31:31 |
|
| 2020-12-17 00:22:48 |
|
| 2020-11-11 12:29:36 |
|
| 2020-10-08 05:22:53 |
|
| 2020-10-05 21:23:04 |
|
| 2020-10-04 17:22:52 |
|
| 2020-10-03 09:22:53 |
|
| 2020-10-01 12:27:53 |
|
| 2020-09-27 09:22:48 |
|
| 2020-09-24 17:22:55 |
|
| 2020-09-24 05:22:57 |
|
