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CVE-2016-1521

Description

The directrun function in directmachine.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, does not validate a certain skip operation, which allows remote attackers to execute arbitrary code, obtain sensitive information, or cause a denial of service (out-of-bounds read and application crash) via a crafted Graphite smart font.

POC

Reference

- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html

- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html

- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722

Github

No PoCs found on GitHub currently.