Executive Summary

Informations
Name CVE-2020-27825 First vendor Publication 2020-12-11
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H
Overall CVSS Score 5.7
Base Score 5.7 Environmental Score 5.7
impact SubScore 5.2 Temporal Score 5.7
Exploitabality Sub Score 0.5
 
Attack Vector Local Attack Complexity High
Privileges Required High User Interaction None
Scope Unchanged Confidentiality Impact High
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:P/I:N/A:C)
Cvss Base Score 5.4 Attack Range Local
Cvss Impact Score 7.8 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27825

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-362 Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 2
Os 1
Os 2
Os 1

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20210521-0008/
DEBIAN https://www.debian.org/security/2021/dsa-4843
MISC https://bugzilla.redhat.com/show_bug.cgi?id=1905155
MLIST https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html

Alert History

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Date Informations
2023-11-07 21:36:12
  • Multiple Updates
2022-09-02 21:27:35
  • Multiple Updates
2021-07-27 12:39:58
  • Multiple Updates
2021-07-16 01:41:25
  • Multiple Updates
2021-07-16 01:36:59
  • Multiple Updates
2021-07-16 00:23:02
  • Multiple Updates
2021-05-21 13:23:03
  • Multiple Updates
2021-05-04 13:52:19
  • Multiple Updates
2021-04-22 03:04:12
  • Multiple Updates
2021-03-27 00:22:50
  • Multiple Updates
2021-03-26 12:34:22
  • Multiple Updates
2021-02-13 05:22:48
  • Multiple Updates
2021-02-02 17:22:51
  • Multiple Updates
2020-12-15 05:22:49
  • Multiple Updates
2020-12-14 21:23:25
  • Multiple Updates
2020-12-12 00:22:47
  • First insertion