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Date: Tue, 29 Aug 2017 15:49:46 +0200
From: Agostino Sarubbo <ago@...too.org>
To: oss-security@...ts.openwall.com
Subject: Re: A bunch of duplicate CVEs requested for?? bho..
Another recent example by owl337:
https://nvd.nist.gov/vuln/detail/CVE-2017-13737 which points to:
https://bugzilla.redhat.com/show_bug.cgi?id=1484196
There is an invalid free in the MagickFree function in magick/memory.c in
GraphicsMagick 1.3.26 that will lead to a remote denial of service attack.
The maintainer of Graphicsmagick, Mr Bob Friesenhahn said to me:
"It looks like this problem is not a GM bug but it is already fixed in
libtiff. Using latest libtiff CVS sources I see this in the GM traces
which are produced by libtiff:
08:41:48 0:01 0.000u 25164 tiff.c/unknown/2268/Coder:
Allocating scanline buffer of 104 bytes
08:41:48 0:01 0.000u 25164 tiff.c/unknown/932/Coder:
TIFF Warning: Discarding 89 bytes to avoid buffer overrun.
08:41:48 0:01 0.000u 25164 tiff.c/unknown/932/Coder:
TIFF Warning: Discarding 16 bytes to avoid buffer overrun.
08:41:48 0:01 0.000u 25164 tiff.c/unknown/932/Coder:
TIFF Warning: Discarding 1 bytes to avoid buffer overrun.
08:41:48 0:01 0.000u 25164 tiff.c/unknown/932/Coder:
TIFF Warning: Terminating PackBitsDecode due to lack of data..
08:41:48 0:01 0.000u 25164 tiff.c/unknown/793/Coder:
Not enough data for scanline 3. (PackBitsDecode)
I am not sure what libtiff Red Hat is using. It may be that the
changes are since the latest libtiff release. I could help with that
by making another libtiff release."
--
Agostino Sarubbo
Gentoo Linux Developer
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