Executive Summary

Informations
Name CVE-2020-27830 First vendor Publication 2021-05-13
Vendor Cve Last vendor Modification 2021-06-25

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.5
Base Score 5.5 Environmental Score 5.5
impact SubScore 3.6 Temporal Score 5.5
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
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:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 2.1 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A vulnerability was found in Linux Kernel where in the spk_ttyio_receive_buf2() function, it would dereference spk_ttyio_synth without checking whether it is NULL or not, and may lead to a NULL-ptr deref crash.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27830

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 2
Os 3381

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20210625-0004/
DEBIAN https://www.debian.org/security/2021/dsa-4843
MISC https://bugzilla.redhat.com/show_bug.cgi?id=1919900
MLIST http://www.openwall.com/lists/oss-security/2020/12/08/1
http://www.openwall.com/lists/oss-security/2020/12/08/4
https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html

Alert History

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Date Informations
2021-06-26 01:40:05
  • Multiple Updates
2021-06-26 01:36:07
  • Multiple Updates
2021-06-25 21:23:13
  • Multiple Updates
2021-06-25 12:36:09
  • Multiple Updates
2021-06-05 01:40:42
  • Multiple Updates
2021-06-04 01:35:37
  • Multiple Updates
2021-06-03 01:36:23
  • Multiple Updates
2021-05-29 01:36:11
  • Multiple Updates
2021-05-25 09:22:55
  • Multiple Updates
2021-05-21 00:22:51
  • Multiple Updates
2021-05-20 01:41:14
  • Multiple Updates
2021-05-20 01:37:42
  • Multiple Updates
2021-05-19 17:22:49
  • Multiple Updates
2021-05-18 05:22:49
  • Multiple Updates
2021-05-13 21:23:11
  • First insertion