Executive Summary
Informations | |||
---|---|---|---|
Name | CVE-2021-22543 | First vendor Publication | 2021-05-26 |
Vendor | Cve | Last vendor Modification | 2023-11-09 |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | |||
---|---|---|---|
Overall CVSS Score | 7.8 | ||
Base Score | 7.8 | Environmental Score | 7.8 |
impact SubScore | 5.9 | Temporal Score | 7.8 |
Exploitabality Sub Score | 1.8 | ||
Attack Vector | Local | Attack Complexity | Low |
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:L/Au:N/C:P/I:P/A:P) | |||
---|---|---|---|
Cvss Base Score | 4.6 | Attack Range | Local |
Cvss Impact Score | 6.4 | Attack Complexity | Low |
Cvss Expoit Score | 3.9 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation. |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22543 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
100 % | CWE-119 | Failure to Constrain Operations within the Bounds of a Memory Buffer |
CPE : Common Platform Enumeration
Type | Description | Count |
---|---|---|
Application | 1 | |
Os | 1 | |
Os | 2 | |
Os | 1 | |
Os | 1 |
Sources (Detail)
Alert History
Date | Informations |
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2023-11-09 17:33:29 |
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2023-11-07 21:34:52 |
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2022-04-02 00:23:12 |
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2021-12-17 09:23:08 |
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2021-11-13 00:23:10 |
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2021-10-16 09:23:11 |
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2021-08-05 01:42:07 |
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2021-07-08 13:23:01 |
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2021-07-08 12:42:07 |
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2021-07-08 12:41:01 |
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2021-07-08 09:23:00 |
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2021-06-30 01:40:06 |
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2021-06-30 01:39:13 |
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2021-06-30 00:22:53 |
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2021-06-26 17:22:51 |
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2021-06-08 00:22:50 |
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2021-06-02 17:22:47 |
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2021-05-27 09:23:08 |
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2021-05-27 00:22:46 |
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2021-05-26 17:22:49 |
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