Fix CVE-2014-8118 (integer overflow allowing arbitrary remote code
execution via crafted CPIO header).

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8118

Source:
https://bugzilla.redhat.com/attachment.cgi?id=962159&action=diff

Adopted by Debian:
http://anonscm.debian.org/cgit/collab-maint/rpm.git/plain/debian/patches/CVE-2014-8118.patch

diff --git a/lib/cpio.c b/lib/cpio.c
index 253ff0f..600633a 100644
--- a/lib/cpio.c
+++ b/lib/cpio.c
@@ -399,6 +399,9 @@ int rpmcpioHeaderRead(rpmcpio_t cpio, char ** path, int * fx)
 
     GET_NUM_FIELD(hdr.filesize, fsize);
     GET_NUM_FIELD(hdr.namesize, nameSize);
+    if (nameSize <= 0 || nameSize > 4096) {
+        return RPMERR_BAD_HEADER;
+    }
 
     char name[nameSize + 1];
     read = Fread(name, nameSize, 1, cpio->fd);
 value='koszko-scripts'>koszko-scripts</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=f19ea27ad08aa12045bebb806a9575f6881e1e9c'>refs</a><a class='active' href='/guix/log/gnu/artwork.scm'>log</a><a href='/guix/tree/gnu/artwork.scm?id=f19ea27ad08aa12045bebb806a9575f6881e1e9c'>tree</a><a href='/guix/commit/gnu/artwork.scm?id=f19ea27ad08aa12045bebb806a9575f6881e1e9c'>commit</a><a href='/guix/diff/gnu/artwork.scm?id=f19ea27ad08aa12045bebb806a9575f6881e1e9c'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/artwork.scm'>
<input type='hidden' name='id' value='f19ea27ad08aa12045bebb806a9575f6881e1e9c'/><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=f19ea27ad08aa12045bebb806a9575f6881e1e9c'>root</a>/<a href='/guix/log/gnu?id=f19ea27ad08aa12045bebb806a9575f6881e1e9c'>gnu</a>/<a href='/guix/log/gnu/artwork.scm?id=f19ea27ad08aa12045bebb806a9575f6881e1e9c'>artwork.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/gnu/artwork.scm?id=f19ea27ad08aa12045bebb806a9575f6881e1e9c&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2019-06-10 23:11:07 +0200'>2019-06-10</span></td><td><a href='/guix/commit/gnu/artwork.scm?id=226a3605d6cabeb71247a732a99d625c9cfafa74'>artwork: Update snapshot to 2f2fe74.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/artwork.scm (%artwork-repository): Update to 2f2fe74.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Diego Nicola Barbato</td></tr>
<tr><td><span title='2019-03-05 23:08:53 +0100'>2019-03-05</span></td><td><a href='/guix/commit/gnu/artwork.scm?id=5387971a9ecf511e1dbbac992af3808437e58d56'>artwork: Update snapshot to b975164.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/artwork.scm (%artwork-repository): Update to b975164.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-02-10 23:25:01 +0100'>2019-02-10</span></td><td><a href='/guix/commit/gnu/artwork.scm?id=5e6a5aeebd7b735e5d5f2eed496cc1c7e8a5b4c9'>artwork: Update snapshot to e951905.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/artwork.scm (%artwork-repository): Update to e951905.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-11-05 00:08:47 +0100'>2018-11-05</span></td><td><a href='/guix/commit/gnu/artwork.scm?id=688d1a01e45eb1277a6337987bfd53f3fe3caaec'>artwork: Clone over HTTPS.</a><span class='msg-avail'>...<span class='msg-tooltip'>Suggested by Leo Famulari &lt;leo@famulari.name&gt;
at &lt;https://lists.gnu.org/archive/html/help-guix/2018-11/msg00039.html&gt;.

* gnu/artwork.scm (%artwork-repository): Switch to HTTPS URL.
</span></span></td><td>Ludovic Courtès</td></tr>