SB2017090807 - Privilege escalation in NetBSD
Published: September 19, 2017
Security Bulletin ID
SB2017090807
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) Race condition (CVE-ID: N/A)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
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 privileges or cause DoS condition on the target system.
The weakness exists due to a missing check in the trap handler and the Linux compatibility layer. A local attacker can trigger race condition, cause the userland kernel space to panic and gain elevated privileges or cause the system to crash.
Remediation
Install update from vendor's website.