SB2017060709 - Denial of service in Linux Kernel
Published: June 7, 2017 Updated: March 12, 2018
Security Bulletin ID
SB2017060709
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Memory corruption (CVE-ID: CVE-2017-18221)
The vulnerability allows a local attacker to cause DoS condition on the target system.The weakness exists in the __munlock_pagevec function due to boundary error when handling malicious input. A local attacker can execute specially crafted mlockall and munlockall system calls that submit malicious input, corrupt NR_MLOCK accounting and cause the system to crash.
Remediation
Install update from vendor's website.