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SUSE:SLE-12-SP1:GA
ghostscript.7320
CVE-2017-9727.patch
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File CVE-2017-9727.patch of Package ghostscript.7320
From 937ccd17ac65935633b2ebc06cb7089b91e17e6b Mon Sep 17 00:00:00 2001 From: Chris Liddell <chris.liddell@artifex.com> Date: Thu, 15 Jun 2017 09:05:20 +0100 Subject: [PATCH] Bug 698056: make bounds check in gx_ttfReader__Read more robust --- base/gxttfb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/base/gxttfb.c b/base/gxttfb.c index 0e9a444..e1561af 100644 --- a/base/gxttfb.c +++ b/base/gxttfb.c @@ -79,7 +79,8 @@ static void gx_ttfReader__Read(ttfReader *self, void *p, int n) if (!r->error) { if (r->extra_glyph_index != -1) { q = r->glyph_data.bits.data + r->pos; - r->error = (r->glyph_data.bits.size - r->pos < n ? + r->error = ((r->pos >= r->glyph_data.bits.size || + r->glyph_data.bits.size - r->pos < n) ? gs_note_error(gs_error_invalidfont) : 0); if (r->error == 0) memcpy(p, q, n); -- 2.9.1
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