SB2022071349 - Denial of service in Linux kernel framebuffer
Published: July 13, 2022
Security Bulletin ID
SB2022071349
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local 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-2022-2380)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the Linux kernel framebuffer within the drivers/video/fbdev/sm712fb.c:smtcfb_read() function. A local user can trigger ab out-of-bounds read error and crash the system.
Remediation
Install update from vendor's website.