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();
 type='hidden' name='id' value='15b509e6545d093909569c716ed05453f1af47cf'/><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=15b509e6545d093909569c716ed05453f1af47cf'>root</a>/<a href='/guix/log/tests?id=15b509e6545d093909569c716ed05453f1af47cf'>tests</a>/<a href='/guix/log/tests/pack.scm?id=15b509e6545d093909569c716ed05453f1af47cf'>pack.scm</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/tests/pack.scm?id=15b509e6545d093909569c716ed05453f1af47cf&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-07-18 19:50:01 +0200'>2021-07-18</span></td><td><a href='/guix/commit/tests/pack.scm?id=0e47fcced442d8e7c1b05184fdc1c14f10ed04ec'>Merge branch 'master' into core-updates</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-07-18 02:02:34 -0400'>2021-07-18</span></td><td><a href='/guix/commit/tests/pack.scm?id=aeded14b8342c1e72afd014a1bc121770f8c3a1c'>pack: Allow embedding custom control files in deb packs.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2021-07-11 00:39:56 +0200'>2021-07-11</span></td><td><a href='/guix/commit/tests/pack.scm?id=152b167cfac863885e00a5e94d0f1a687d165923'>pack: Adjust test to earlier &lt;compressor&gt; changes.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-06-29 14:53:21 -0400'>2021-06-29</span></td><td><a href='/guix/commit/tests/pack.scm?id=82daab42811a2e3c7684ebdf12af75ff0fa67b99'>pack: Add support for the deb format.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2021-06-29 14:53:21 -0400'>2021-06-29</span></td><td><a href='/guix/commit/tests/pack.scm?id=8108c266dc2fbc70602b2aa5c6887bf17bed16e8'>tests: pack: Fix compressor extension.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2020-07-20 23:25:09 +0200'>2020-07-20</span></td><td><a href='/guix/commit/tests/pack.scm?id=b3802495f607fd5e17c5acf0be2ee014036e2464'>pack: Build the store database under a UTF-8 locale.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-07-20 23:25:09 +0200'>2020-07-20</span></td><td><a href='/guix/commit/tests/pack.scm?id=181e0dddd68dc58190bd4831ea5d1ecbd420d83a'>pack: 'self-contained-tarball' runs derivation in a UTF-8local.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>