From: sms
Subject: Fix CVE-2014-8140: out-of-bounds write issue in test_compr_eb()
Bug-Debian: http://bugs.debian.org/773722

--- a/extract.c
+++ b/extract.c
@@ -2234,10 +2234,17 @@
     if (compr_offset < 4)                /* field is not compressed: */
         return PK_OK;                    /* do nothing and signal OK */
 
+    /* Return no/bad-data error status if any problem is found:
+     *    1. eb_size is too small to hold the uncompressed size
+     *       (eb_ucsize).  (Else extract eb_ucsize.)
+     *    2. eb_ucsize is zero (invalid).  2014-12-04 SMS.
+     *    3. eb_ucsize is positive, but eb_size is too small to hold
+     *       the compressed data header.
+     */
     if ((eb_size < (EB_UCSIZE_P + 4)) ||
-        ((eb_ucsize = makelong(eb+(EB_HEADSIZE+EB_UCSIZE_P))) > 0L &&
-         eb_size <= (compr_offset + EB_CMPRHEADLEN)))
-        return IZ_EF_TRUNC;               /* no compressed data! */
+     ((eb_ucsize = makelong( eb+ (EB_HEADSIZE+ EB_UCSIZE_P))) == 0L) ||
+     ((eb_ucsize > 0L) && (eb_size <= (compr_offset + EB_CMPRHEADLEN))))
+        return IZ_EF_TRUNC;             /* no/bad compressed data! */
 
     if (
 #ifdef INT_16BIT
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<div class='path'>path: <a href='/guix/log/?id=e8a8c5a13e475f628f90d2d358b6cc13e2faee4b'>root</a>/<a href='/guix/log/guix.scm?id=e8a8c5a13e475f628f90d2d358b6cc13e2faee4b'>guix.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/guix.scm?id=e8a8c5a13e475f628f90d2d358b6cc13e2faee4b&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-07-12 01:17:45 +0200'>2022-07-12</span></td><td><a href='/guix/commit/guix.scm?id=4574ef267e543bcac97d9c400f30cb731df29181'>guix: Really export 'define-public'.</a><span class='msg-avail'>...<span class='msg-tooltip'>This is a followup to 3858275962f1ac567b5dce2355035f9eddea0a05, which
didn't have any effect.

* guix.scm: Explicitly use (guix packages) so #:re-export-and-replace
is effective.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-09-14 11:50:58 +0200'>2021-09-14</span></td><td><a href='/guix/commit/guix.scm?id=3858275962f1ac567b5dce2355035f9eddea0a05'>guix: Replace 'define-public'.</a><span class='msg-avail'>...<span class='msg-tooltip'>This is a followup to 8531997d2a1e10d574a6e9ab70bc86ade6af4733.

* guix.scm: Use #:re-export-and-replace for 'define-public'.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-06-29 00:00:13 +0200'>2021-06-29</span></td><td><a href='/guix/commit/guix.scm?id=e059adcb6001ab0353d969b24030d0c342f8830e'>(guix) no longer pulls in (guix ftp-client).</a><span class='msg-avail'>...<span class='msg-tooltip'>That choice was made in 2014 and never made much sense.

* guix.scm (%public-modules): Remove 'ftp-client'.
</span></span></td><td>Ludovic Courtès</td></tr>