SB2017080821 - Remote code execution in Express Compressed Fonts in Microsoft Windows

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Main Vulnerability Database SB2017080821

SB2017080821 - Remote code execution in Express Compressed Fonts in Microsoft Windows

Published: August 8, 2017 Updated: August 16, 2017

Security Bulletin ID SB2017080821
CSH 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 vulnerability.


1) Improper input validation (CVE-ID: CVE-2017-8691)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to an error when processing embedded fonts in Windows font library. A remote attacker can create a specially crafted font file, trick the victim into loading via a web-page or a document file, and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


Remediation

Install update from vendor's website.

References