Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2020-14310 First vendor Publication 2020-07-31
Vendor Cve Last vendor Modification 2023-11-07

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 on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14310

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-190 Integer Overflow or Wraparound (CWE/SANS Top 25)

CPE : Common Platform Enumeration

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

Sources (Detail)

Source Url
CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14310
GENTOO https://security.gentoo.org/glsa/202104-05
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html
UBUNTU https://usn.ubuntu.com/4432-1/

Alert History

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Date Informations
2023-11-07 21:36:58
  • Multiple Updates
2021-10-19 17:23:14
  • 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