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Message-ID: <3fd03cb43fae4c9f8d4744e04038bcac@imshyb02.MITRE.ORG> Date: Sun, 4 Dec 2016 22:17:35 -0500 From: <cve-assign@...re.org> To: <ago@...too.org> CC: <cve-assign@...re.org>, <oss-security@...ts.openwall.com> Subject: Re: graphicsmagick: memory allocation failure in MagickRealloc (memory.c) -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 > https://blogs.gentoo.org/ago/2016/12/01/graphicsmagick-memory-allocation-failure-in-magickrealloc-memory-c > > The problem is that the embedded JPEG data claims to have dimensions > 5939556833 and > this is only learned after we are in the JPEG reader. > > AddressSanitizer failed to allocate 0xfb8065000 bytes of LargeMmapAllocator > > MagickRealloc ... GraphicsMagick-1.3.24/magick/memory.c:471:18 > OpenCache ... GraphicsMagick-1.3.24/magick/pixel_cache.c:3155:7 >> From: Bob Friesenhahn >> Date: Thu, 1 Dec 2016 21:20:13 -0600 (CST) >> ... >> We did make an unreleased fix (Mercurial changeset 14953:38d0f281e8c8, >> and earlier changeset 14831:28c0bb8bf89a), but perhaps not the way you >> like. The fix which was made was to require that the embedded JPEG >> data has the same dimensions as the containing JNG file. The existing >> resource limit mechanism would then allow the user to constrain the >> size of the JNG image. The default constraints in a 64-bit build are >> larger than what the JPEG format supports. Use CVE-2016-9830. - -- CVE Assignment Team M/S M300, 202 Burlington Road, Bedford, MA 01730 USA [ A PGP key is available for encrypted communications at http://cve.mitre.org/cve/request_id.html ] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCAAGBQJYRNjcAAoJEHb/MwWLVhi2unEP/026aCl/yFoWW+oA6eBTE90K crzLOqQvjd0xCLXZtZJzRYn1WD1YUm+2ViYpAWScUzazeqqQbdrESua2oHBUt9wJ 9MB0fHmxrt/X4FYeudBB98Jvm5d+fUs7OYNg6nlEUeeOVLyU8hSTbn6s0FVGp7TT ewBIlJTixW76jKB63DNDZ6lVc/UvYgCzaYiR5SfjXRWjfddQZjtgbsxDb3B+iQ4s kAbtvPDknfia5B0dewSogp7A0e5I2wfanhTWQRCYO7hTJFH7BhRd4u/Sj6bHn8WB mxm9kq/ghCzG3vHRelZLIXp6rQ0LR5x9BfjCfFMU5PwEbWGpH/z0Omie5XsSH5hk YR0Erj9BUBthPAeRCFYbkl9yhUfIn14d6Oj8SyMHto6FZ7kutFeWp1M/zQStXN2w U/zKpHE1aOknMW0mGqenRI5BS5bhbR+KHimPfQVdTG/1DcbhPblsrpisChP4R4Nl zwS2C5AYusq0jhAlJM+dFOIXyDM5t5tkP/Iqb+Xhks5SNnu67vl4t47JSY4nONgF 0MP2myZ0GtvkTI2AUDKFxapC2+LWNfOIqNAiIRino5ydLsvEke5jiglesTnEsI5S /k65wgNAGUNHRi3+unBMeeOBxuPRFliLi+zj/GOvWPz1voZ4oMPFdrY2AG1jOJvx HpRkWF3tQVXvCyW5QUgX =ES9U -----END PGP SIGNATURE-----
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