SB2016082906 - SUSE Linux update for Linux Kernel Live Patch 6 for SLE 12 SP1



SB2016082906 - SUSE Linux update for Linux Kernel Live Patch 6 for SLE 12 SP1

Published: August 29, 2016

Security Bulletin ID SB2016082906
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Heap-based buffer overflow (CVE-ID: CVE-2016-5829)

The vulnerability allows a local attacker to cause DoS condition or gain elevated privileges on the target system.

The weakness exists in the hiddev_ioctl_usage function in drivers/hid/usbhid/hiddev.c  due to heap-based buffer overflow. A local attacker can cause the service to crash or gain elevated privileges via a crafted (1) HIDIOCGUSAGES or (2) HIDIOCSUSAGES ioctl call.

2) Race condition (CVE-ID: CVE-2016-6480)

The vulnerability allows local users to provoke a denial of service.

The vulnerability exists due to parafunction of ioctl_send_fib. By altering "double fetch" vulnerability, a local user can provoke a denial of service.

Successful exploitation of this vulnerability will allow an attacker to cause a denial of service


Remediation

Install update from vendor's website.