SB2023013010 - Privilege escalation in Linux kernel mediatek driver
Published: January 30, 2023
Security Bulletin ID
SB2023013010
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Buffer overflow (CVE-ID: CVE-2022-3636)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the __mtk_ppe_check_skb() function in drivers/net/ethernet/mediatek/mtk_ppe.c in Linux kernel. A local user can trigger memory corruption and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.