USN-3409-1: FontForge vulnerabilities
Ubuntu Security Notice USN-3409-1
4th September, 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 version:
- Ubuntu 14.04 LTS:
-
fontforge
20120731.b-5ubuntu0.1
-
fontforge-common
20120731.b-5ubuntu0.1
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
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