SB2018030905 - Denial of service in FreeBSD



SB2018030905 - Denial of service in FreeBSD

Published: March 9, 2018

Security Bulletin ID SB2018030905
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Use-after-free error (CVE-ID: CVE-2018-6916)


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

The weakness exists due to use-after-free memory error in the IPsec Authentication Header (AH). A remote attacker on a trusted host can send a specially crafted IP packet, trigger memory corruption and cause kernel panic.

Remediation

Install update from vendor's website.