SB2020112015 - Out-of-bounds read in Linux kernel tty vt driver

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Main Vulnerability Database SB2020112015

SB2020112015 - Out-of-bounds read in Linux kernel tty vt driver

Published: November 20, 2020

Security Bulletin ID SB2020112015
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 security vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2020-28974)

The vulnerability allows a local privileged user to read and manipulate data.

The vulnerability exists due to an out-of-bounds read error within the con_font_default() and con_font_op() functions in drivers/tty/vt/vt.c. A local privileged user can read and manipulate data.


Remediation

Install update from vendor's website.

References