[ASA-201805-3] freetype2: denial of service

[Jelle van der Waa]

Arch Linux Security Advisory ASA-201805-3
=========================================

Severity: Low
Date    : 2018-05-09
CVE-ID  : CVE-2018-6942
Package : freetype2
Type    : denial of service
Remote  : Yes
Link    : https://security.archlinux.org/AVG-613

Summary
=======

The package freetype2 before version 2.9.1-1 is vulnerable to denial of
service.

Resolution
==========

Upgrade to 2.9.1-1.

# pacman -Syu "freetype2>=2.9.1-1"

The problem has been fixed upstream in version 2.9.1.

Workaround
==========

None.

Description
===========

An issue was discovered in FreeType 2 before 2.9.1. A NULL pointer
dereference in the Ins_GETVARIATION() function within ttinterp.c could
lead to denial of service via a crafted font file.

Impact
======

A remote attacker is able to cause a denial of service via a specially
crafted file.

References
==========

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5736
https://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=29c759284e305ec428703c9a5831d0b1fc3497ef
https://security.archlinux.org/CVE-2018-6942
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