Adobe Flash – Heap Buffer Overflow Loading ‘.FLV’ File with Nellymoser Audio Codec

• Exploit Database
• 112 阅读

• 作者： Google Security Research
  日期： 2015-08-19
• 类别：

  • dos
  平台：

  • linux_x86-64
• 来源：https://www.exploit-db.com/exploits/37879/
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  Source: https://code.google.com/p/google-security-research/issues/detail?id=425&can=1&q=label%3AProduct-Flash%20modified-after%3A2015%2F8%2F17&sort=id   To reproduce, host the attached files appropriately and:   <div style="width: 640px;" class="wp-video"><video class="wp-video-shortcode" id="video-82525-2" preload="metadata" controls="controls"><source type="video/x-flv" src="http://localhost/LoadMP4.swf?file=crash4000368.flv&_=2" /><a href="http://localhost/LoadMP4.swf?file=crash4000368.flv">http://localhost/LoadMP4.swf?file=crash4000368.flv</a></video></div>   If there is no crash at first, refresh the page a few times.   With a debugger attached to 64-bit Flash in Chrome Linux, the crash manifests like this:   => 0x00007f7789d081bb <__memmove_ssse3_back+443>: movaps %xmm1,-0x10(%rdi)   rdi0x7f7778d69200   7f777894b000-7f7778d69000 rw-p 00000000 00:00 0 7f7778d69000-7f7778d88000 ---p 00000000 00:00 0   This looks very like a heap-based buffer overflow that just happens to have walked off the end of the committed heap.   Also, this bug bears disturbing similarities to CVE-2015-3043, see for example: https://www.fireeye.com/blog/threat-research/2015/04/probable_apt28_useo.html   Proof of Concept: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/37879.zip