SB2017091525 - Improper input validation in NetBSD
Published: September 15, 2017
Security Bulletin ID
SB2017091525
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper input validation (CVE-ID: N/A)
The vulnerability allows a local attacker to gain elevated privileges or cause denial of service on the target system.The weakness exists due to improper handling of openat() system calls using a file descriptor that does not name a directory as the starting point for a path lookup. A local attacker can make a specially crafted openat() system calls, trigger a vnode reference leak in the kernel and gain elevated privileges or cause a DoS condition.
Remediation
Install update from vendor's website.