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Adobe Acrobat Reader DC 15.016.20045 - Invalid Font '.ttf' Memory Corruption (3)
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# Application: Adobe Acrobat Reader DC
# Platforms: Windows,OSX
# Versions: 15.016.20045 and earlier
# Author: Sébastien Morin of COSIG
# Website: https://cosig.gouv.qc.ca/en/advisory/
# Twitter: @COSIG_
# Date: July 12, 2016
# CVE: CVE-2016-4203
# COSIG-2016-28
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1) Introduction
2) Report Timeline
3) Technical details
4) POC
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1) Introduction
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Adobe Acrobat is a family of application software and Web services developed by Adobe Systems to view, create, manipulate, print and manage files in Portable Document Format (PDF).
(https://en.wikipedia.org/wiki/Adobe_Acrobat)
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2) Report Timeline
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2016-05-18: Sébastien Morin of COSIG report this vulnerability to Adobe PSIRT;
2016-06-08: Adobe PSIRT confirm this vulnerability;
2016-07-12: Adobe fixed the issue (APSB16-26);
2016-07-12: Advisory released by COSIG;
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3) Technical details
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The vulnerability allows a remote attacker to execute malicious code or access to part of dynamically allocated memory using a user interaction
that opens a specially crafted PDF file containing an invalid font (.ttf ) including invalid data.
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4) POC
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https://cosig.gouv.qc.ca/wp-content/uploads/2016/07/COSIG-2016-28.pdf
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/40097.zip
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13 Jul 2016 00:00Current
9.6High risk
Vulners AI Score9.6
CVSS 39.8
CVSS 210
EPSS0.24039