SB2017041813 - Out-of-bounds read in qemu (Alpine package)



SB2017041813 - Out-of-bounds read in qemu (Alpine package)

Published: April 18, 2017

Security Bulletin ID SB2017041813
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) Out-of-bounds read (CVE-ID: CVE-2016-8668)

The vulnerability allows a local privileged user to a crash the entire system.

The rocker_io_writel function in hw/net/rocker/rocker.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging failure to limit DMA buffer size.


Remediation

Install update from vendor's website.