Executive Summary
Informations | |||
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Name | CVE-2020-25221 | First vendor Publication | 2020-09-10 |
Vendor | Cve | Last vendor Modification | 2023-02-02 |
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: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
get_gate_page in mm/gup.c in the Linux kernel 5.7.x and 5.8.x before 5.8.7 allows privilege escalation because of incorrect reference counting (caused by gate page mishandling) of the struct page that backs the vsyscall page. The result is a refcount underflow. This can be triggered by any 64-bit process that can use ptrace() or process_vm_readv(), aka CID-9fa2dd946743. |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25221 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
100 % | CWE-672 | Operation on a Resource after Expiration or Release |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
Date | Informations |
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2024-03-12 13:06:37 |
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2024-02-02 02:15:05 |
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2024-02-01 12:20:29 |
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2023-12-29 02:06:45 |
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2023-11-22 02:06:17 |
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2023-09-05 13:09:32 |
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2023-09-05 01:20:05 |
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2023-09-02 13:08:21 |
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2023-09-02 01:20:23 |
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2023-08-12 13:13:04 |
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2023-08-12 01:19:38 |
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2023-08-11 13:06:10 |
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2023-08-11 01:20:17 |
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2023-08-06 13:04:25 |
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2023-08-06 01:19:28 |
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2023-08-04 13:04:46 |
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2023-08-04 01:19:45 |
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2023-07-14 13:04:46 |
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2023-07-14 01:19:36 |
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2023-06-06 12:57:52 |
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2023-04-13 01:54:15 |
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2023-03-29 02:07:24 |
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2023-03-28 12:19:50 |
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2023-02-03 05:27:42 |
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2023-01-25 01:54:14 |
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2023-01-20 01:53:49 |
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2022-10-11 12:57:49 |
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2022-10-11 01:19:26 |
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2022-09-09 01:53:34 |
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2022-03-11 01:49:09 |
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2022-02-01 01:44:25 |
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2021-12-11 12:45:30 |
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2021-12-11 01:42:40 |
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2021-08-26 12:38:27 |
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2021-08-24 01:39:01 |
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2021-08-19 12:39:20 |
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2021-06-03 01:36:03 |
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2021-05-25 12:37:17 |
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2021-05-19 12:35:17 |
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2021-05-04 13:50:07 |
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2021-04-22 03:01:48 |
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2021-03-27 01:34:07 |
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2021-01-14 01:32:08 |
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2021-01-13 01:31:00 |
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2020-12-15 01:29:15 |
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2020-12-12 12:29:42 |
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2020-12-09 01:30:37 |
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2020-12-05 12:31:26 |
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2020-10-01 21:23:09 |
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2020-09-25 01:28:31 |
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2020-09-23 00:22:56 |
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2020-09-22 21:23:11 |
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2020-09-16 21:23:16 |
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2020-09-15 21:23:15 |
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2020-09-11 00:22:52 |
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2020-09-10 21:23:14 |
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