SB2020020619 - Use-after-free in Linux kernel

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Main Vulnerability Database SB2020020619

SB2020020619 - Use-after-free in Linux kernel

Published: February 6, 2020 Updated: June 1, 2020

Security Bulletin ID SB2020020619
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Physical access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Use-after-free (CVE-ID: CVE-2020-8649)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 5.2 [CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local authenticated user to #BASIC_IMPACT#.

There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region function in drivers/video/console/vgacon.c.


Remediation

Install update from vendor's website.

References