SB2017101115 - Ubuntu update for Linux kernel (GCP)



SB2017101115 - Ubuntu update for Linux kernel (GCP)

Published: October 11, 2017

Security Bulletin ID SB2017101115
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) Divide by zero (CVE-ID: CVE-2017-14106)

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

The weakness exists due to divide-by-zero error in the tcp_disconnect() function in net/ipv4/tcp.c. A local attacker can trigger a disconnect within a certain tcp_recvmsg code path and cause kernel panic.

Successful exploitation of the vulnerability results in denial of service.

Remediation

Install update from vendor's website.