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Re: CVE request: pngcrush 1.7.83 crash bug (most likely exploitable)


From: cve-assign () mitre org
Date: Sat, 28 Feb 2015 20:10:37 -0500 (EST)

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I found a crash bug in pngcrush that is most likely
exploitable and wanted to get a CVE assignment for it. I've already been in
contact with the pngcrush author and this bug has been fixed in pngcrush
v1.7.84 (which was released today, no mention of this in the changelog
though: http://sourceforge.net/p/pmt/news/2015/02/pngcrush-1784-released/).

Access violation on destination operand

Exploitability Classification: EXPLOITABLE
Explanation: The target crashed on an access violation at an address
matching the destination operand of the instruction. This likely indicates
a write access violation, which means the attacker may control the write
address and/or value.

I've attached the test case but here is a hexdump:
0000000 4d8a 474e 0a0d 0a1a 0000 0000 3030 3030
0000010

Use CVE-2015-2158.

- -- 
CVE assignment team, MITRE CVE Numbering Authority
M/S M300
202 Burlington Road, Bedford, MA 01730 USA
[ PGP key available through http://cve.mitre.org/cve/request_id.html ]
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