oss-security - CVE Request -- FreeType -- Memory corruption flaw by processing certain LWFN fonts

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Date: Fri, 06 Aug 2010 15:35:25 +0200
From: Jan Lieskovsky <jlieskov@...hat.com>
To: "Steven M. Christey" <coley@...us.mitre.org>
CC: oss-security <oss-security@...ts.openwall.com>
Subject: CVE Request -- FreeType -- Memory corruption flaw by processing certain
 LWFN fonts

Hi Steve, vendors,

   A memory corruption flaw was found in the way FreeType font rendering engine
processed certain Adobe Type 1 Mac Font File (LWFN) fonts. An attacker
could use this flaw to create a specially-crafted font file that, when
opened, would cause an application linked against libfreetype to crash,
or, possibly execute arbitrary code.

Upstream bug report:
   [1] https://savannah.nongnu.org/bugs/?30658

Public reproducer:
   [2] http://alt.swiecki.net/j/f/sigsegv31.ttf

Upstream changeset:
   [3] http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=81f3472c0ba7b8f6466e2e214fa8c1c17fade975

References:
   [4] https://bugzilla.redhat.com/show_bug.cgi?id=621907

Credit: Robert Swiecki

Could you allocate a CVE id for this?

Thanks && Regards, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Response Team

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