guix-devel/gnu/packages/patches/mupdf-CVE-2016-7563.patch

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Fix CVE-2016-7563:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7563
http://bugs.ghostscript.com/show_bug.cgi?id=697136
Patch copied from upstream source repository:
http://git.ghostscript.com/?p=mujs.git;a=commitdiff;h=f8234d830e17fc5e8fe09eb76d86dad3f6233c59
From f8234d830e17fc5e8fe09eb76d86dad3f6233c59 Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor.andersson@artifex.com>
Date: Tue, 20 Sep 2016 17:11:32 +0200
Subject: [PATCH] Fix bug 697136.
We were unconditionally reading the next character if we encountered
a '*' in a multi-line comment; possibly reading past the end of
the input.
---
jslex.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/jslex.c b/jslex.c
index 7b80800..cbd0eeb 100644
--- a/thirdparty/mujs/jslex.c
+++ b/thirdparty/mujs/jslex.c
@@ -225,7 +225,8 @@ static int lexcomment(js_State *J)
if (jsY_accept(J, '/'))
return 0;
}
- jsY_next(J);
+ else
+ jsY_next(J);
}
return -1;
}
--
2.10.2