Executive Summary
Informations | |||
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Name | CVE-2021-3444 | First vendor Publication | 2021-03-23 |
Vendor | Cve | Last vendor Modification | 2021-12-02 |
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 | |||
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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
The bpf verifier in the Linux kernel did not properly handle mod32 destination register truncation when the source register was known to be 0. A local attacker with the ability to load bpf programs could use this gain out-of-bounds reads in kernel memory leading to information disclosure (kernel memory), and possibly out-of-bounds writes that could potentially lead to code execution. This issue was addressed in the upstream kernel in commit 9b00f1b78809 ("bpf: Fix truncation handling for mod32 dst reg wrt zero") and in Linux stable kernels 5.11.2, 5.10.19, and 5.4.101. |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3444 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
50 % | CWE-681 | Incorrect Conversion between Numeric Types |
50 % | CWE-125 | Out-of-bounds Read |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
Date | Informations |
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2024-03-12 13:17:19 |
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2024-02-02 02:26:13 |
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2024-02-01 12:24:05 |
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2024-01-12 02:18:54 |
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2023-12-29 02:17:00 |
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2023-11-22 02:16:25 |
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2023-09-29 13:11:09 |
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2023-09-05 13:20:30 |
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2023-09-05 01:23:36 |
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2023-09-02 13:19:05 |
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2023-09-02 01:23:57 |
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2023-08-12 13:25:12 |
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2023-08-12 01:23:11 |
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2023-08-11 13:17:27 |
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2023-08-11 01:23:57 |
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2023-08-06 13:15:26 |
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2023-08-06 01:22:56 |
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2023-08-04 13:15:48 |
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2023-08-04 01:23:17 |
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2023-07-14 13:15:52 |
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2023-07-14 01:23:05 |
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2023-06-06 13:08:00 |
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2023-04-13 02:06:08 |
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2023-03-29 02:18:01 |
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2023-03-28 12:23:18 |
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2023-03-25 02:05:58 |
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2023-01-25 02:06:12 |
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2023-01-20 02:05:43 |
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2022-10-11 13:07:42 |
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2022-10-11 01:22:46 |
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2022-09-09 02:05:51 |
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2022-03-11 01:57:19 |
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2022-02-01 01:51:22 |
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2021-12-11 12:52:15 |
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2021-12-11 01:49:10 |
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2021-12-03 00:23:12 |
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2021-11-13 00:23:10 |
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2021-10-16 09:23:11 |
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2021-08-26 12:43:27 |
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2021-08-24 01:43:57 |
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2021-08-19 12:44:18 |
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2021-06-05 01:44:34 |
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2021-06-04 01:39:17 |
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2021-06-03 01:40:13 |
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2021-05-29 01:39:51 |
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2021-05-25 12:41:18 |
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2021-05-19 12:39:12 |
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2021-05-04 14:09:59 |
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2021-04-23 01:10:32 |
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2021-04-22 00:23:24 |
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2021-04-16 17:22:55 |
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2021-04-08 09:23:01 |
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2021-03-26 12:38:48 |
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