Executive Summary

Informations
Name CVE-2020-14311 First vendor Publication 2020-07-31
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Overall CVSS Score 6
Base Score 6 Environmental Score 6
impact SubScore 5.2 Temporal Score 6
Exploitabality Sub Score 0.8
 
Attack Vector Local Attack Complexity Low
Privileges Required High User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact High 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:P/A:P)
Cvss Base Score 3.6 Attack Range Local
Cvss Impact Score 4.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14311

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 7
Os 4
Os 2
Os 2
Os 2
Os 1
Os 1

Sources (Detail)

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html
http://www.openwall.com/lists/oss-security/2021/09/17/2
http://www.openwall.com/lists/oss-security/2021/09/17/4
http://www.openwall.com/lists/oss-security/2021/09/21/1
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14311
https://security.gentoo.org/glsa/202104-05
https://usn.ubuntu.com/4432-1/
Source Url

Alert History

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Date Informations
2024-11-28 13:39:36
  • Multiple Updates
2023-11-07 21:36:58
  • Multiple Updates
2021-10-19 17:23:14
  • Multiple Updates
2021-09-21 17:23:16
  • Multiple Updates
2021-09-18 00:23:17
  • Multiple Updates
2021-09-17 13:23:10
  • Multiple Updates
2021-05-05 01:38:38
  • Multiple Updates
2021-05-04 13:23:58
  • Multiple Updates
2021-05-01 09:22:50
  • Multiple Updates
2021-04-22 02:57:50
  • Multiple Updates
2020-08-09 00:22:56
  • Multiple Updates
2020-08-05 05:22:52
  • Multiple Updates
2020-08-05 00:22:59
  • Multiple Updates
2020-08-01 09:22:57
  • Multiple Updates
2020-08-01 05:22:55
  • First insertion