SB2017112313 - Buffer overflow in Libxml2



SB2017112313 - Buffer overflow in Libxml2

Published: November 23, 2017 Updated: July 28, 2020

Security Bulletin ID SB2017112313
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) Buffer overflow (CVE-ID: CVE-2017-16931)

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

parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name.


Remediation

Install update from vendor's website.