Copied from Fedora.

http://pkgs.fedoraproject.org/cgit/unzip.git/plain/unzip-6.0-overflow.patch?id=d18f821e

diff --git a/extract.c b/extract.c
index a0a4929..9ef80b3 100644
--- a/extract.c
+++ b/extract.c
@@ -2214,6 +2214,7 @@ static int test_compr_eb(__G__ eb, eb_size, compr_offset, test_uc_ebdata)
     ulg eb_ucsize;
     uch *eb_ucptr;
     int r;
+    ush method;
 
     if (compr_offset < 4)                /* field is not compressed: */
         return PK_OK;                    /* do nothing and signal OK */
@@ -2223,6 +2224,12 @@ static int test_compr_eb(__G__ eb, eb_size, compr_offset, test_uc_ebdata)
          eb_size <= (compr_offset + EB_CMPRHEADLEN)))
         return IZ_EF_TRUNC;               /* no compressed data! */
 
+    method = makeword(eb + (EB_HEADSIZE + compr_offset));
+    if ((method == STORED) && (eb_size != compr_offset + EB_CMPRHEADLEN + eb_ucsize))
+        return PK_ERR;            /* compressed & uncompressed
+                                   * should match in STORED
+                                   * method */
+
     if (
 #ifdef INT_16BIT
         (((ulg)(extent)eb_ucsize) != eb_ucsize) ||
930f4d6517cfbd058ec45'>refs</a><a class='active' href='/guix/log/gnu/installer/newt/menu.scm'>log</a><a href='/guix/tree/gnu/installer/newt/menu.scm?id=6b9ec7b0ef4ef93a517930f4d6517cfbd058ec45'>tree</a><a href='/guix/commit/gnu/installer/newt/menu.scm?id=6b9ec7b0ef4ef93a517930f4d6517cfbd058ec45'>commit</a><a href='/guix/diff/gnu/installer/newt/menu.scm?id=6b9ec7b0ef4ef93a517930f4d6517cfbd058ec45'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/installer/newt/menu.scm'>
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<div class='path'>path: <a href='/guix/log/?id=6b9ec7b0ef4ef93a517930f4d6517cfbd058ec45'>root</a>/<a href='/guix/log/gnu?id=6b9ec7b0ef4ef93a517930f4d6517cfbd058ec45'>gnu</a>/<a href='/guix/log/gnu/installer?id=6b9ec7b0ef4ef93a517930f4d6517cfbd058ec45'>installer</a>/<a href='/guix/log/gnu/installer/newt?id=6b9ec7b0ef4ef93a517930f4d6517cfbd058ec45'>newt</a>/<a href='/guix/log/gnu/installer/newt/menu.scm?id=6b9ec7b0ef4ef93a517930f4d6517cfbd058ec45'>menu.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/installer/newt/menu.scm?id=6b9ec7b0ef4ef93a517930f4d6517cfbd058ec45&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2019-05-05 17:21:18 +0200'>2019-05-05</span></td><td><a href='/guix/commit/gnu/installer/newt/menu.scm?id=28b26eca45ada3f8612d135f80c8dfd2e7fa0e81'>installer: Fix typo.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/installer/newt/menu.scm (run-menu-page): Add missing space after
period.

Signed-off-by: Danny Milosavljevic &lt;dannym@scratchpost.org&gt;
</span></span></td><td>Miguel</td></tr>
<tr><td><span title='2019-01-17 14:04:26 +0100'>2019-01-17</span></td><td><a href='/guix/commit/gnu/installer/newt/menu.scm?id=a7b2a4649fdbc4c9d2e49c6ee3b0e9a94048861c'>installer: menu: Fix typo.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/installer/newt/menu.scm (run-menu-page): Fix typo.
</span></span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2019-01-17 14:04:20 +0100'>2019-01-17</span></td><td><a href='/guix/commit/gnu/installer/newt/menu.scm?id=d0f3a672dcbdfefd3556b6a21985ff0e35eed3be'>gnu: Add graphical installer support.</a><span class='msg-avail'>...<span class='msg-tooltip'>* configure.ac: Require that guile-newt is available.
* gnu/installer.scm: New file.
* gnu/installer/aux-files/logo.txt: New file.
* gnu/installer/build-installer.scm: New file.
* gnu/installer/connman.scm: New file.
* gnu/installer/keymap.scm: New file.
* gnu/installer/locale.scm: New file.
* gnu/installer/newt.scm: New file.
* gnu/installer/newt/ethernet.scm: New file.
* gnu/installer/newt/hostname.scm: New file.
* gnu/installer/newt/keymap.scm: New file.
* gnu/installer/newt/locale.scm: New file.
* gnu/installer/newt/menu.scm: New file.
* gnu/installer/newt/network.scm: New file.
* gnu/installer/newt/page.scm: New file.
* gnu/installer/newt/timezone.scm: New file.
* gnu/installer/newt/user.scm: New file.
* gnu/installer/newt/utils.scm: New file.
* gnu/installer/newt/welcome.scm: New file.
* gnu/installer/newt/wifi.scm: New file.
* gnu/installer/steps.scm: New file.
* gnu/installer/timezone.scm: New file.
* gnu/installer/utils.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add previous files.
* gnu/system.scm: Export %root-account.
* gnu/system/install.scm (%installation-services): Use kmscon instead of linux
VT for all tty.
(installation-os)[users]: Add the graphical installer as shell of the root
account.
[packages]: Add font related packages.
* po/guix/POTFILES.in: Add installer files.
</span></span></td><td>Mathieu Othacehe</td></tr>