Adobe Reader 9.3.2 (CoolType.dll) Remote Memory Corruption / DoS Vulnerability


Adobe Reader 9.3.2 (CoolType.dll) Remote Memory Corruption / DoS Vulnerability


Adobe Reader software is the global standard for electronic document sharing. It is the only PDF
file viewer that can open and interact with all PDF documents. Use Adobe Reader to view, search,
digitally sign, verify, print, and collaborate on Adobe PDF files.


Adobe Systems Incorporated

Product Web Page:

Version tested:



Adobe Reader suffers from a remote memory corruption vulnerability that causes the application to
crash while processing the malicious .PDF file. The issue is triggered when the reader tries to
initialize the CoolType Typography Engine (cooltype.dll). This vulnerability also affects and crashes
major browsers like: Mozilla Firefox, Opera and Apple Safari. Google Chrome & IE does not crash.
Talking about Blended Threat Vulnerabilities ;).


(bd0.e14): Access violation – code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=313100ee ebx=0211a722 ecx=00000031 edx=02e091a4 esi=00017e58 edi=00000000
eip=08075dc2 esp=0012d478 ebp=0012d488 iopl=0 nv up ei pl nz na pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010206
08075dc2 660fb644322c movzx ax,byte ptr [edx+esi+2Ch] ds:0023:02e21028=??


Tested On:

Microsoft Windows XP Professional SP3 (English)
Microsoft Windows XP Professional SP2 (English)
Microsoft Windows 7 Ultimate
GNU/Linux Ubuntu Desktop 9.10 (i386) 32-bit
GNU/Linux Fedora 10 (Cambridge) /

Vendor Status:

18.04.2010 – Vendor informed.
18.04.2010 – Vendor replied.
07.05.2010 – Asked vendor for confirmation.
07.05.2010 – Vendor confirms vulnerability.
03.06.2010 – Asked vendor for status.
03.06.2010 – Vendor replied.
24.06.2010 – Vendor reveals patch release date.
29.06.2010 – Coordinated public advisory.

Advisory Details:

Zero Science Lab Advisory ID: ZSL-2010-4943
Adobe Advisory ID: APSB10-15
CVE ID: CVE-2010-2204

Live Demo:

Vulnerability Discovered By:

Gjoko ‘LiquidWorm’ Krstic

liquidworm gmail com

Zero Science Lab –


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