Executive Summary

Informations
Name CVE-2021-20317 First vendor Publication 2021-09-27
Vendor Cve Last vendor Modification 2022-03-10

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 4.4
Base Score 4.4 Environmental Score 4.4
impact SubScore 3.6 Temporal Score 4.4
Exploitabality Sub Score 0.8
 
Attack Vector Local Attack Complexity Low
Privileges Required High 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:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 4.9 Attack Range Local
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20317

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-665 Improper Initialization

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 3347

Sources (Detail)

Source Url
DEBIAN https://www.debian.org/security/2022/dsa-5096
MISC https://bugzilla.redhat.com/show_bug.cgi?id=2005258
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=511885...
MLIST https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html

Alert History

If you want to see full details history, please login or register.
0
1
2
3
4
5
6
7
Date Informations
2022-03-10 21:23:21
  • Multiple Updates
2022-02-01 01:48:17
  • Multiple Updates
2021-12-21 17:23:12
  • Multiple Updates
2021-12-17 09:23:04
  • Multiple Updates
2021-12-11 12:49:25
  • Multiple Updates
2021-12-11 01:46:14
  • Multiple Updates
2021-10-06 00:22:55
  • Multiple Updates
2021-09-27 17:22:52
  • First insertion