CVE-2020-14311

Published Jul 31, 2020

Last updated a year ago

Overview

Description
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.
Source
secalert@redhat.com
NVD status
Modified

Risk scores

CVSS 3.1

Type
Primary
Base score
6
Impact score
5.2
Exploitability score
0.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Severity
MEDIUM

CVSS 2.0

Type
Primary
Base score
3.6
Impact score
4.9
Exploitability score
3.9
Vector string
AV:L/AC:L/Au:N/C:N/I:P/A:P

Weaknesses

secalert@redhat.com
CWE-122
nvd@nist.gov
CWE-190

Social media

Hype score
Not currently trending

Configurations