Executive Summary

Informations
Name CVE-2020-28941 First vendor Publication 2020-11-19
Vendor Cve Last vendor Modification 2020-12-11

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: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

An issue was discovered in drivers/accessibility/speakup/spk_ttyio.c in the Linux kernel through 5.9.9. Local attackers on systems with the speakup driver could cause a local denial of service attack, aka CID-d41227544427. This occurs because of an invalid free when the line discipline is used more than once.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28941

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-763 Release of Invalid Pointer or Reference

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 2
Os 3360

Sources (Detail)

Source Url
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
MISC https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d4...
https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git/commit/?h=tty-...
https://github.com/torvalds/linux/commit/d4122754442799187d5d537a9c039a49a67e...
https://www.openwall.com/lists/oss-security/2020/11/19/3
MLIST http://www.openwall.com/lists/oss-security/2020/11/19/5
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html

Alert History

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Date Informations
2021-01-14 01:32:31
  • Multiple Updates
2021-01-13 01:31:21
  • Multiple Updates
2020-12-14 21:23:26
  • Multiple Updates
2020-12-12 09:22:50
  • Multiple Updates
2020-12-11 05:22:50
  • Multiple Updates
2020-12-08 21:24:20
  • Multiple Updates
2020-12-05 05:22:55
  • Multiple Updates
2020-12-02 21:23:22
  • Multiple Updates
2020-11-25 09:23:01
  • Multiple Updates
2020-11-20 05:22:55
  • Multiple Updates
2020-11-20 00:22:55
  • First insertion