Executive Summary
Informations | |||
---|---|---|---|
Name | CVE-2020-29569 | First vendor Publication | 2020-12-15 |
Vendor | Cve | Last vendor Modification | 2023-01-19 |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | |||
---|---|---|---|
Overall CVSS Score | 8.8 | ||
Base Score | 8.8 | Environmental Score | 8.8 |
impact SubScore | 6 | Temporal Score | 8.8 |
Exploitabality Sub Score | 2 | ||
Attack Vector | Local | Attack Complexity | Low |
Privileges Required | Low | User Interaction | None |
Scope | Changed | 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:L/Au:N/C:C/I:C/A:C) | |||
---|---|---|---|
Cvss Base Score | 7.2 | Attack Range | Local |
Cvss Impact Score | 10 | Attack Complexity | Low |
Cvss Expoit Score | 3.9 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
An issue was discovered in the Linux kernel through 5.10.1, as used with Xen through 4.14.x. The Linux kernel PV block backend expects the kernel thread handler to reset ring->xenblkd to NULL when stopped. However, the handler may not have time to run if the frontend quickly toggles between the states connect and disconnect. As a consequence, the block backend may re-use a pointer after it was freed. A misbehaving guest can trigger a dom0 crash by continuously connecting / disconnecting a block frontend. Privilege escalation and information leaks cannot be ruled out. This only affects systems with a Linux blkback. |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29569 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
100 % | CWE-416 | Use After Free |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
Date | Informations |
---|---|
2024-03-12 13:07:40 |
|
2024-02-02 02:16:10 |
|
2024-02-01 12:20:53 |
|
2023-12-29 02:07:43 |
|
2023-11-22 02:07:15 |
|
2023-09-29 13:02:11 |
|
2023-09-05 13:10:37 |
|
2023-09-05 01:20:30 |
|
2023-09-02 13:09:24 |
|
2023-09-02 01:20:47 |
|
2023-08-12 13:14:11 |
|
2023-08-12 01:20:03 |
|
2023-08-11 13:07:12 |
|
2023-08-11 01:20:42 |
|
2023-08-06 13:05:27 |
|
2023-08-06 01:19:52 |
|
2023-08-04 13:05:47 |
|
2023-08-04 01:20:10 |
|
2023-08-02 01:54:20 |
|
2023-07-14 13:05:48 |
|
2023-07-14 01:20:00 |
|
2023-06-06 12:58:46 |
|
2023-04-13 01:55:07 |
|
2023-03-29 02:08:22 |
|
2023-03-28 12:20:14 |
|
2023-01-25 00:27:37 |
|
2023-01-19 21:27:32 |
|
2022-10-11 12:58:42 |
|
2022-10-11 01:19:48 |
|
2022-09-09 01:54:22 |
|
2022-04-26 21:23:36 |
|
2022-03-11 01:49:51 |
|
2022-02-01 01:45:04 |
|
2021-12-11 12:46:11 |
|
2021-12-11 01:43:18 |
|
2021-09-02 01:40:01 |
|
2021-08-26 12:39:02 |
|
2021-08-24 01:39:36 |
|
2021-08-19 12:39:55 |
|
2021-08-05 01:38:45 |
|
2021-07-21 17:23:08 |
|
2021-07-12 12:37:22 |
|
2021-06-05 01:40:54 |
|
2021-06-04 01:35:48 |
|
2021-06-03 01:36:36 |
|
2021-05-29 01:36:22 |
|
2021-05-25 12:37:49 |
|
2021-05-19 12:35:48 |
|
2021-05-05 01:39:55 |
|
2021-05-04 13:52:32 |
|
2021-04-22 03:04:07 |
|
2021-03-27 01:34:36 |
|
2021-03-26 12:34:34 |
|
2021-02-13 05:22:49 |
|
2021-02-05 17:22:52 |
|
2021-02-04 21:23:24 |
|
2021-02-02 17:22:52 |
|
2021-01-14 01:32:34 |
|
2021-01-13 01:31:24 |
|
2020-12-18 21:23:25 |
|
2020-12-15 21:23:51 |
|