lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Date: Thu, 4 Feb 2021 16:22:41 +0800
From: houjingyi <houjingyi647@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] null pointer deference in mfmp4srcsnk.dll in latest windows 10

Found a null pointer deference in mfmp4srcsnk.dll in latest windows 10 by
accident.

Download mov file here:

https://github.com/MozillaSecurity/fuzzdata/blob/master/samples/samples.mplayerhq.hu/ffmpeg-bugs/roundup/issue2490/invalid_mov_time.mov

Your explorer will crash. If not use windows media player.

(2788.3588): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=00000000 ebx=180bced8 ecx=5aaa2e20 edx=44445111 esi=5aaa2e20
edi=00000000
eip=5aa7d16e esp=1793f374 ebp=1793f3b4 iopl=0         nv up ei pl zr na pe
cy
cs=0023  ss=002b  ds=002b  es=002b  fs=0053  gs=002b
efl=00010247
mfmp4srcsnk!CQTMovie::FinalParseAtom+0x16e:
5aa7d16e 8b08            mov     ecx,dword ptr [eax]
 ds:002b:00000000=????????

I know MSRC usually do not fix null pointer deference but I reported to
them just in case. And as I expected they closed the case.

_______________________________________________
Sent through the Full Disclosure mailing list
https://nmap.org/mailman/listinfo/fulldisclosure
Web Archives & RSS: http://seclists.org/fulldisclosure/

Powered by blists - more mailing lists