CVE-2016-4658

A use-after-free flaw was found in the Xpointer implementation of libxml2. An attacker could use this flaw against an application parsing untrusted XML files and compiled with libxml2 to leak small amount of memory data.

This flaw can be triggered by parsing untrusted XML files via applications compiled with libxml2 causing the application to crash. For web browsers or browser like applications, which parse untrusted web content, it may be possible to trigger this flaw without any user intervention and cause remote code execution with the permissions of the user running the browser. For other applications this flaw is difficult to trigger and even difficult to exploit in real life situations.

The status of mingw-libxml2 package in RHEL-8 is marked as "not-affected" because it does not impact end-users.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.