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Ubuntu Security Notice USN-4593-1

Ubuntu Security Notice USN-4593-1
Posted Oct 20, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4593-1 - Sergei Glazunov discovered that FreeType did not correctly handle certain malformed font files. If a user were tricked into using a specially crafted font file, a remote attacker could cause FreeType to crash or possibly execute arbitrary code with user privileges.

tags | advisory, remote, arbitrary
systems | linux, ubuntu
advisories | CVE-2020-15999
SHA-256 | febe229d6289829a933dc52199e594baab75d17e2d3c1a10f83ede00566d6988

Ubuntu Security Notice USN-4593-1

Change Mirror Download
=========================================================================
Ubuntu Security Notice USN-4593-1
October 20, 2020

freetype vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

FreeType could be made to crash or run programs as your login if it
opened a specially crafted file.

Software Description:
- freetype: FreeType 2 is a font engine library

Details:

Sergei Glazunov discovered that FreeType did not correctly handle certain
malformed font files. If a user were tricked into using a specially crafted
font file, a remote attacker could cause FreeType to crash or possibly
execute arbitrary code with user privileges.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS:
libfreetype6 2.10.1-2ubuntu0.1

Ubuntu 18.04 LTS:
libfreetype6 2.8.1-2ubuntu2.1

Ubuntu 16.04 LTS:
libfreetype6 2.6.1-0.1ubuntu2.5

After a standard system update you need to restart your session to make
all the necessary changes.

References:
https://usn.ubuntu.com/4593-1
CVE-2020-15999

Package Information:
https://launchpad.net/ubuntu/+source/freetype/2.10.1-2ubuntu0.1
https://launchpad.net/ubuntu/+source/freetype/2.8.1-2ubuntu2.1
https://launchpad.net/ubuntu/+source/freetype/2.6.1-0.1ubuntu2.5
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