Executive Summary

Informations
Name CVE-2020-28974 First vendor Publication 2020-11-20
Vendor Cve Last vendor Modification 2021-01-27

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
Overall CVSS Score 5
Base Score 5 Environmental Score 5
impact SubScore 4.7 Temporal Score 5
Exploitabality Sub Score 0.3
 
Attack Vector Physical Attack Complexity Low
Privileges Required High User Interaction None
Scope Unchanged Confidentiality Impact Low
Integrity Impact Low Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:P/A:C)
Cvss Base Score 6.1 Attack Range Local
Cvss Impact Score 8.5 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28974

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-125 Out-of-bounds Read

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 1
Os 3360

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20210108-0003/
MISC https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.7
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...
https://seclists.org/oss-sec/2020/q4/104
MLIST http://www.openwall.com/lists/oss-security/2020/11/25/1
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html

Alert History

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Date Informations
2021-01-28 00:22:53
  • Multiple Updates
2021-01-13 17:22:57
  • Multiple Updates
2021-01-12 17:22:58
  • Multiple Updates
2021-01-08 17:22:55
  • Multiple Updates
2020-12-18 17:22:50
  • Multiple Updates
2020-12-14 21:23:26
  • Multiple Updates
2020-12-12 09:22:50
  • Multiple Updates
2020-12-11 05:22:51
  • Multiple Updates
2020-12-08 21:24:20
  • Multiple Updates
2020-12-08 00:22:55
  • Multiple Updates
2020-12-05 05:22:56
  • Multiple Updates
2020-12-01 17:22:57
  • Multiple Updates
2020-11-25 13:22:55
  • Multiple Updates
2020-11-21 00:22:51
  • Multiple Updates
2020-11-20 21:23:27
  • First insertion