Rapid7 Vulnerability & Exploit Database

FreeBSD: VID-3B9590A1-E358-11E7-A293-54E1AD3D6335 (CVE-2017-13720): libXfont -- multiple memory leaks

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

FreeBSD: VID-3B9590A1-E358-11E7-A293-54E1AD3D6335 (CVE-2017-13720): libXfont -- multiple memory leaks

Severity
4
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:P)
Published
10/04/2017
Created
07/25/2018
Added
12/20/2017
Modified
05/07/2019

Description

In the PatternMatch function in fontfile/fontdir.c in libXfont through 1.5.2 and 2.x before 2.0.2, an attacker with access to an X connection can cause a buffer over-read during pattern matching of fonts, leading to information disclosure or a crash (denial of service). This occurs because '\0' characters are incorrectly skipped in situations involving ? characters.

Solution(s)

  • freebsd-upgrade-package-libxfont
  • freebsd-upgrade-package-libxfont2

References

  • DSA-3995
  • CVE-2017-13720
  • USN-3442-1

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
  • Lightweight Endpoint Agent
  • Live Dashboards
  • Real Risk Prioritization
  • IT-Integrated Remediation Projects
  • Cloud, Virtual, and Container Assessment
  • Integrated Threat Feeds
  • Easy-to-Use RESTful API
  • Automation-Assisted Patching
  • Automated Containment
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;