SB2016102009 - Permissions, Privileges, and Access Controls in libx11 (Alpine package)



SB2016102009 - Permissions, Privileges, and Access Controls in libx11 (Alpine package)

Published: October 20, 2016

Security Bulletin ID SB2016102009
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2016-7942)

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The XGetImage function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving image type and geometry, which triggers out-of-bounds read operations.


Remediation

Install update from vendor's website.