SB2017111516 - Denial of service in Linux Kernel



SB2017111516 - Denial of service in Linux Kernel

Published: November 15, 2017

Security Bulletin ID SB2017111516
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) NULL pointer dereference (CVE-ID: CVE-2017-18216)

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists due to the affected software does not use the subsystem.su_mutex component while accessing an item->ci_parent. A local attacker can trigger NULL pointer dereference in in the fs/ocfs2/cluster/nodemanager.c source code file cause the service to crash.

Remediation

Install update from vendor's website.