SB2021010726 - Ubuntu update for linux-oem-5.6
Published: January 7, 2021
Security Bulletin ID
SB2021010726
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2020-28974)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
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.