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Mozilla Firefox 29.0 - Null Pointer Dereference
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<title>Mozilla Firefox Null Pointer Dereference Vulnerability</title>
<pre>
Fun side of life!
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Details:
Title: Mozilla Firefox Null Pointer Dereference Vulnerability
Version: Prior to 29.0
Date: 4/30/2014
Discovered By: Mr.XHat
E-Mail: Mr.XHat {AT} GMail.com
Tested On: Windows 7 x64 EN
###################################
Disassembly:
01694240 8bc2 mov eax,edx
01694242 d9e0 fchs
01694244 8b550c mov edx,dword ptr [ebp+0Ch]
01694247 d95c2418 fstp dword ptr [esp+18h]
0169424b 8b1a mov ebx,dword ptr [edx] ds:0023:00000000=????????
0169424d d9442418 fld dword ptr [esp+18h]
01694251 8d4c2420 lea ecx,[esp+20h]
01694255 d9c0 fld st(0)
01694257 51 push ecx
============================================
Output:
(e0.544): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=07e1fd00 ebx=0994bf90 ecx=000001f8 edx=00000000 esi=000000a8 edi=00000000
eip=0169424b esp=0012c8f0 ebp=0012c940 iopl=0 nv up ei pl nz na po nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010202
*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Program Files\Mozilla Firefox\xul.dll -
xul!NS_NewLocalFile+0x2a49c:
0169424b 8b1a mov ebx,dword ptr [edx] ds:0023:00000000=????????
#######################################################################################
</pre>
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16 May 2014 00:00Current
7.4High risk
Vulners AI Score7.4