CVE-2018-9063: Buffer Overflow
MapDrv (C:\Program Files\Lenovo\System Update\mapdrv.exe) In Lenovo System Update versions earlier than 5.07.0072 contains a local vulnerability where an attacker entering very large user ID or password can overrun the program's buffer, causing undefined behaviors, such as execution of arbitrary code. No additional privilege is granted to the attacker beyond what is already possessed to run MapDrv.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Lenovo System Update (MapDrv)to a version that resolves this vulnerability.Fixed in 5.07.0072 - Compensating control
Since MapDrv versions earlier than 5.07.0072 are vulnerable to arbitrary code execution via very large user ID/password inputs, restrict access/usage of MapDrv to trusted administrators and prevent untrusted users from being able to run it.
Event History
Frequently Asked Questions
What is the vulnerability ID for this Lenovo System Update vulnerability?
The vulnerability ID for this Lenovo System Update vulnerability is CVE-2018-9063.
What is the severity of CVE-2018-9063?
The severity of CVE-2018-9063 is high with a CVSS score of 7.8.
What is affected by CVE-2018-9063?
Lenovo System Update versions earlier than 5.07.0072 are affected by CVE-2018-9063.
How can an attacker exploit CVE-2018-9063?
An attacker can exploit CVE-2018-9063 by entering very large user ID or password which can overrun the program's buffer, causing undefined behaviors.
Is there a fix available for CVE-2018-9063?
Yes, Lenovo has released a fix for CVE-2018-9063. It is recommended to update Lenovo System Update to version 5.07.0072 or later.