Executive Summary
Informations | |||
---|---|---|---|
Name | CVE-2021-21781 | First vendor Publication | 2021-08-18 |
Vendor | Cve | Last vendor Modification | 2023-02-03 |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | |||
---|---|---|---|
Overall CVSS Score | 3.3 | ||
Base Score | 3.3 | Environmental Score | 3.3 |
impact SubScore | 1.4 | Temporal Score | 3.3 |
Exploitabality Sub Score | 1.8 | ||
Attack Vector | Local | Attack Complexity | Low |
Privileges Required | Low | User Interaction | None |
Scope | Unchanged | Confidentiality Impact | Low |
Integrity Impact | None | Availability Impact | None |
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:L/AC:L/Au:N/C:P/I:N/A:N) | |||
---|---|---|---|
Cvss Base Score | 2.1 | Attack Range | Local |
Cvss Impact Score | 2.9 | Attack Complexity | Low |
Cvss Expoit Score | 3.9 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
An information disclosure vulnerability exists in the ARM SIGPAGE functionality of Linux Kernel v5.4.66 and v5.4.54. The latest version (5.11-rc4) seems to still be vulnerable. A userland application can read the contents of the sigpage, which can leak kernel memory contents. An attacker can read a process’s memory at a specific offset to trigger this vulnerability. This was fixed in kernel releases: 4.14.222 4.19.177 5.4.99 5.10.17 5.11 |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21781 |
CPE : Common Platform Enumeration
Type | Description | Count |
---|---|---|
Application | 1 | |
Application | 1 | |
Application | 1 | |
Os | 2 |
Sources (Detail)
Source | Url |
---|---|
MISC | https://talosintelligence.com/vulnerability_reports/TALOS-2021-1243 |
N/A | https://www.oracle.com/security-alerts/cpujul2022.html |
Alert History
Date | Informations |
---|---|
2023-02-03 17:27:38 |
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2022-07-26 00:29:45 |
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2022-07-21 17:27:24 |
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2022-04-28 21:23:15 |
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2022-04-19 21:23:14 |
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2021-08-26 09:22:53 |
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2021-08-18 21:23:10 |
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