SB2017091524 - Buffer overflow in NetBSD
Published: September 15, 2017
Security Bulletin ID
SB2017091524
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 security vulnerability.
1) Buffer overflow (CVE-ID: N/A)
The vulnerability allows a local attacker to execute arbitrary code on the target system.The weakness exists due to insufficient bounds checking when reading or writing the color map using the WSDISPLAYIO_GETCMAP and WSDISPLAYIO_PUTCMAP ioctls. A local attacker can use a wscons terminal, trigger a buffer overflow and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
Remediation
Install update from vendor's website.