SB2018051610 - Privilege escalation in Lenovo System Update
Published: May 16, 2018
Security Bulletin ID
SB2018051610
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-2018-9063)
CWE-ID: CWE-120 - Buffer overflow
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 attacker to gain elevated privivleges on the target system.
The weakness exists in MapDrv (C:\Program Files\Lenovo\System Update\mapdrv.exe) due to buffer overflow. A local attacker entering very large user ID or password can overrun the program's buffer and execute arbitrary code with root privileges.
Successful exploitation of the vulnerability may result in system compromise.
Remediation
Install update from vendor's website.