Fix CVE-2017-11110:

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11110
https://bugzilla.redhat.com/show_bug.cgi?id=1468471
https://security-tracker.debian.org/tracker/CVE-2017-11110

Patch copied from openSUSE:

https://build.opensuse.org/package/view_file/openSUSE:Maintenance:6985/catdoc.openSUSE_Leap_42.2_Update/CVE-2017-11110.patch?expand=1

From: Andreas Stieger <astieger@suse.com>
Date: Mon, 10 Jul 2017 15:37:58 +0000
References: CVE-2017-11110 http://bugzilla.suse.com/show_bug.cgi?id=1047877

All .doc I found had sectorSize 0x09 at offset 0x1e. Guarding it against <4.

---
 src/ole.c |    5 +++++
 1 file changed, 5 insertions(+)

Index: catdoc-0.95/src/ole.c
===================================================================
--- catdoc-0.95.orig/src/ole.c	2016-05-25 06:37:12.000000000 +0200
+++ catdoc-0.95/src/ole.c	2017-07-10 17:42:33.578308107 +0200
@@ -106,6 +106,11 @@ FILE* ole_init(FILE *f, void *buffer, si
 		return NULL;
 	}
  	sectorSize = 1<<getshort(oleBuf,0x1e);
+	/* CVE-2017-11110) */
+ 	if (sectorSize < 4) {
+		fprintf(stderr,"sectorSize < 4 not supported\n");
+		return NULL;
+	}
 	shortSectorSize=1<<getshort(oleBuf,0x20);
 
 /* Read BBD into memory */
@@ -147,7 +152,7 @@ FILE* ole_init(FILE *f, void *buffer, si
 		}
 
 		fseek(newfile, 512+mblock*sectorSize, SEEK_SET);
-		if(fread(tmpBuf+MSAT_ORIG_SIZE+(sectorSize-4)*i,
+		if(fread(tmpBuf+MSAT_ORIG_SIZE+(sectorSize-4)*i, /* >= 4 for CVE-2017-11110 */
 						 1, sectorSize, newfile) != sectorSize) {
 			fprintf(stderr, "Error read MSAT!\n");
 			ole_finish();
d6f17a942aa43fbd59b9252'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=04b0636e257dfd416d6f17a942aa43fbd59b9252'>root</a>/<a href='/guix/log/AUTHORS?id=04b0636e257dfd416d6f17a942aa43fbd59b9252'>AUTHORS</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/AUTHORS?id=04b0636e257dfd416d6f17a942aa43fbd59b9252&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2015-07-19 21:49:58 +0200'>2015-07-19</span></td><td><a href='/guix/commit/AUTHORS?id=a5b2570a1c10f1fbdcbbc173378ce0bdb090250d'>AUTHORS: Remove the hand-made list of people.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2015-07-04 12:13:01 +0300'>2015-07-04</span></td><td><a href='/guix/commit/AUTHORS?id=e7c48ee9519aa5cd094f3326a4caeccba072e9fd'>Clean up 'THANKS' and 'AUTHORS'.</a><span class='msg-avail'>...</span></td><td>Alex Kost</td></tr>
<tr><td><span title='2015-06-27 20:26:06 +0300'>2015-06-27</span></td><td><a href='/guix/commit/AUTHORS?id=1d642af9872949633b1084f53352f3c851f41810'>Add Claes Wallin to 'AUTHORS'.</a></td><td>Alex Kost</td></tr>
<tr><td><span title='2015-04-26 21:38:37 -0400'>2015-04-26</span></td><td><a href='/guix/commit/AUTHORS?id=6bc24063155d897c6c80a192e48bd9f61cb9014e'>gnu: Add guile-minikanren.</a><span class='msg-avail'>...</span></td><td>Christopher Allan Webber</td></tr>
<tr><td><span title='2015-04-05 23:15:20 +0200'>2015-04-05</span></td><td><a href='/guix/commit/AUTHORS?id=bc45ceb5ffb445ca26a6cd5ac34f39d0dedd8504'>Add Andy to 'AUTHORS'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2015-03-09 20:26:44 -0400'>2015-03-09</span></td><td><a href='/guix/commit/AUTHORS?id=1cf0814d4d89737d7a61bc64650ea5ac58fff7cb'>Add Paul to 'AUTHORS'.</a></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2015-03-09 23:51:43 +0100'>2015-03-09</span></td><td><a href='/guix/commit/AUTHORS?id=e92da92d63d0b50d462fc3608b19d18ac239d87b'>Add Alexander to 'AUTHORS'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2015-02-20 10:14:23 +0100'>2015-02-20</span></td><td><a href='/guix/commit/AUTHORS?id=76aae0f96f3aed10e842b1726ffc19848600c04d'>Add David Hashe to 'AUTHORS'.</a></td><td>Andreas Enge</td></tr>
<tr><td><span title='2015-02-02 12:46:35 +0100'>2015-02-02</span></td><td><a href='/guix/commit/AUTHORS?id=1af50c224d7d8febad0cf34b67d0ffd6c2dff638'>Add Deck to 'AUTHORS'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2015-01-24 22:57:49 +0100'>2015-01-24</span></td><td><a href='/guix/commit/AUTHORS?id=da74bc7886cba77192260d84b2dd57466e4b5354'>Add Ricardo to 'AUTHORS'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2014-12-09 13:19:47 +0100'>2014-12-09</span></td><td><a href='/guix/commit/AUTHORS?id=03356e977567b76e981c04af20302018f9f02fac'>Add Tomáš to 'AUTHORS'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2014-11-18 22:03:03 +0100'>2014-11-18</span></td><td><a href='/guix/commit/AUTHORS?id=418367f7f0d209b6a1251ab8e33c5233dd099a26'>Add Julien to 'AUTHORS'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2014-11-14 22:58:18 +0100'>2014-11-14</span></td><td><a href='/guix/commit/AUTHORS?id=f21ca31d15a7a9bd8aaf221c0a2c97b2d08980e9'>Add the name of Sou Bunnbu in its original script to 'AUTHORS'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2014-11-12 14:39:30 +0100'>2014-11-12</span></td><td><a href='/guix/commit/AUTHORS?id=dc05f01cba88bc768a0b12ecfb3760073ff0bc47'>Add Sun Bunnbu to 'AUTHORS'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2014-10-26 14:48:57 +0100'>2014-10-26</span></td><td><a href='/guix/commit/AUTHORS?id=822efdff8a52ba50a84a6f138e22468dc824174b'>Update name and email address for Joshua Grant.</a></td><td>Joshua Grant</td></tr>
<tr><td><span title='2014-10-08 22:12:06 +0200'>2014-10-08</span></td><td><a href='/guix/commit/AUTHORS?id=9c814b828ae07899594ad9cd83d2e77e4cc528cc'>Add Federico to 'AUTHORS'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2014-09-10 15:44:51 +0200'>2014-09-10</span></td><td><a href='/guix/commit/AUTHORS?id=6e4532e8fec5b31fad38be82ada46b5a70952b91'>Add Marek to 'AUTHORS'.</a></td><td>Ludovic Courtès</td></tr>