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SUSE:SLE-12-SP1:GA
ft2demos.449
CVE-2014-9657.patch
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File CVE-2014-9657.patch of Package ft2demos.449
From eca0f067068020870a429fe91f6329e499390d55 Mon Sep 17 00:00:00 2001 From: Werner Lemberg <wl@gnu.org> Date: Mon, 24 Nov 2014 09:22:08 +0000 Subject: [truetype] Fix Savannah bug #43679. * src/truetype/ttpload.c (tt_face_load_hdmx): Check minimum size of `record_size'. --- diff --git a/src/truetype/ttpload.c b/src/truetype/ttpload.c index 9723a51..9991925 100644 --- a/src/truetype/ttpload.c +++ b/src/truetype/ttpload.c @@ -508,9 +508,9 @@ record_size = FT_NEXT_ULONG( p ); /* The maximum number of bytes in an hdmx device record is the */ - /* maximum number of glyphs + 2; this is 0xFFFF + 2; this is */ - /* the reason why `record_size' is a long (which we read as */ - /* unsigned long for convenience). In practice, two bytes */ + /* maximum number of glyphs + 2; this is 0xFFFF + 2, thus */ + /* explaining why `record_size' is a long (which we read as */ + /* unsigned long for convenience). In practice, two bytes are */ /* sufficient to hold the size value. */ /* */ /* There are at least two fonts, HANNOM-A and HANNOM-B version */ @@ -522,8 +522,10 @@ record_size &= 0xFFFFU; /* The limit for `num_records' is a heuristic value. */ - - if ( version != 0 || num_records > 255 || record_size > 0x10001L ) + if ( version != 0 || + num_records > 255 || + record_size > 0x10001L || + record_size < 4 ) { error = FT_THROW( Invalid_File_Format ); goto Fail; -- cgit v0.9.0.2
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