=========================================================================Ubuntu Security Notice USN-3409-1
September 04, 2017
fontforge vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in FontForge.
Software Description:
- fontforge: font editor
Details:
It was discovered that FontForge was vulnerable to a heap-based buffer
over-read. A remote attacker could use a crafted file to DoS or execute
arbitrary code. (CVE-2017-11568, CVE-2017-11569, CVE-2017-11572)
It was discovered that FontForge was vulnerable to a stack-based buffer
overflow. A remote attacker could use a crafted file to DoS or execute
arbitrary code. (CVE-2017-11571)
It was discovered that FontForge was vulnerable to a heap-based buffer
overflow. A remote attacker could use a crafted file to DoS or execute
arbitrary code. (CVE-2017-11574)
It was discovered that FontForge was vulnerable to a buffer over-read.
A remote attacker could use a crafted file to DoS or execute arbitrary
code. (CVE-2017-11575, CVE-2017-11577)
It was discovered that FontForge wasn't correctly checking the sign of
a vector size. A remote attacker could use a crafted file to DoS.
(CVE-2017-11576)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 LTS:
fontforge 20120731.b-5ubuntu0.1
fontforge-common 20120731.b-5ubuntu0.1
In general, a standard system update will make all the necessary
changes.
References:
https://ubuntu.com/security/notices/USN-3409-1
CVE-2017-11568, CVE-2017-11569, CVE-2017-11571, CVE-2017-11572,
CVE-2017-11574, CVE-2017-11575, CVE-2017-11576, CVE-2017-11577
Package Information:
https://launchpad.net/ubuntu/+source/fontforge/20120731.b-5ubuntu0.1
