Executive Summary

Informations
Name CVE-2019-20794 First vendor Publication 2020-05-09
Vendor Cve Last vendor Modification 2021-07-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 4.7
Base Score 4.7 Environmental Score 4.7
impact SubScore 3.6 Temporal Score 4.7
Exploitabality Sub Score 1
 
Attack Vector Local Attack Complexity High
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:N/I:N/A:C)
Cvss Base Score 4.7 Attack Range Local
Cvss Impact Score 6.9 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID namespace's pid 1, it will result in a hung task, and resources being permanently locked up until system reboot. This can result in resource exhaustion.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20794

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-772 Missing Release of Resource after Effective Lifetime

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 3377

Sources (Detail)

Source Url
CONFIRM https://github.com/sargun/fuse-example
https://security.netapp.com/advisory/ntap-20200608-0001/
https://sourceforge.net/p/fuse/mailman/message/36598753/
MLIST http://www.openwall.com/lists/oss-security/2020/08/24/1

Alert History

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Date Informations
2024-03-12 12:59:01
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2022-10-11 12:50:49
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2022-09-09 01:47:02
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2021-12-11 12:40:33
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2021-08-26 12:34:04
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2021-08-19 12:34:58
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2021-08-05 01:33:40
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2021-07-21 17:23:58
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2021-04-22 02:48:12
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2021-03-27 01:30:15
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2021-01-13 01:27:36
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2020-12-12 12:26:32
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2020-12-09 01:27:08
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2020-12-05 12:28:08
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2020-09-25 01:25:39
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2020-09-17 01:25:25
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2020-09-02 17:23:06
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2020-08-11 12:25:32
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2020-08-08 01:25:18
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2020-08-07 12:25:47
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2020-08-07 01:26:34
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2020-08-01 12:25:23
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2020-07-30 01:26:16
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2020-06-08 17:22:46
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2020-05-24 01:29:12
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2020-05-23 02:29:18
  • First insertion