Executive Summary

Informations
Name CVE-2019-20908 First vendor Publication 2020-07-15
Vendor Cve Last vendor Modification 2021-07-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 6.7
Base Score 6.7 Environmental Score 6.7
impact SubScore 5.9 Temporal Score 6.7
Exploitabality Sub Score 0.8
 
Attack Vector Local Attack Complexity Low
Privileges Required High 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:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 6.9 Attack Range Local
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

An issue was discovered in drivers/firmware/efi/efi.c in the Linux kernel before 5.4. Incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20908

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 2
Os 3354
Os 1

Sources (Detail)

Source Url
MISC https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...
https://git.zx2c4.com/american-unsigned-language/tree/american-unsigned-langu...
https://mailarchives.bentasker.co.uk/Mirrors/OSSSec/2020/06-Jun/msg00035.html
MLIST http://www.openwall.com/lists/oss-security/2020/07/20/6
http://www.openwall.com/lists/oss-security/2020/07/29/3
http://www.openwall.com/lists/oss-security/2020/07/30/2
http://www.openwall.com/lists/oss-security/2020/07/30/3
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
UBUNTU https://usn.ubuntu.com/4426-1/
https://usn.ubuntu.com/4427-1/
https://usn.ubuntu.com/4439-1/
https://usn.ubuntu.com/4440-1/

Alert History

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Date Informations
2024-03-12 12:59:02
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2022-10-11 12:50:50
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2022-02-01 01:39:23
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2021-12-11 12:40:35
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2021-08-19 12:34:59
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2021-07-21 17:23:37
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2021-06-03 01:32:02
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2021-05-25 12:33:13
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2021-03-27 01:30:16
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2020-12-12 12:26:33
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2020-12-05 12:28:09
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2020-09-25 01:25:40
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2020-08-15 00:22:57
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2020-08-11 09:22:54
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2020-08-07 21:23:21
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2020-08-05 05:22:51
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2020-08-03 21:23:18
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2020-08-01 09:22:55
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2020-07-30 21:23:07
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2020-07-29 21:23:11
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2020-07-28 00:22:42
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2020-07-21 00:22:44
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2020-07-16 17:22:48
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2020-07-16 05:22:45
  • First insertion