Executive Summary
Informations | |||
---|---|---|---|
Name | CVE-2021-20233 | First vendor Publication | 2021-03-03 |
Vendor | Cve | Last vendor Modification | 2023-11-07 |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H | |||
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Overall CVSS Score | 8.2 | ||
Base Score | 8.2 | Environmental Score | 8.2 |
impact SubScore | 6 | Temporal Score | 8.2 |
Exploitabality Sub Score | 1.5 | ||
Attack Vector | Local | Attack Complexity | Low |
Privileges Required | High | 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
A flaw was found in grub2 in versions prior to 2.06. Setparam_prefix() in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an attacker to corrupt memory by one byte for each quote in the input. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20233 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
100 % | CWE-787 | Out-of-bounds Write (CWE/SANS Top 25) |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
Date | Informations |
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2023-11-07 21:35:34 |
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2022-04-19 00:23:12 |
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2022-03-25 12:52:46 |
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2021-05-05 01:42:34 |
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2021-05-04 13:25:47 |
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2021-05-01 09:22:53 |
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2021-04-24 05:22:52 |
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2021-04-22 03:12:42 |
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2021-03-26 12:36:49 |
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