components/unzip/patches/03_CVE-2014-8141.patch
branchs11u3-sru
changeset 5551 6d32c82eb4f5
parent 3678 96c88473320c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/unzip/patches/03_CVE-2014-8141.patch	Wed Mar 02 10:35:32 2016 +0100
@@ -0,0 +1,138 @@
+Source:
+https://bugzilla.redhat.com/show_bug.cgi?id=1174856
+Info:
+http://www.ocert.org/advisories/ocert-2014-011.html
+
+--- a/process.c	2009-03-06 02:25:10.000000000 +0100
++++ b/process.c	2014-12-05 22:42:39.000000000 +0100
+@@ -1,5 +1,5 @@
+ /*
+-  Copyright (c) 1990-2009 Info-ZIP.  All rights reserved.
++  Copyright (c) 1990-2014 Info-ZIP.  All rights reserved.
+ 
+   See the accompanying file LICENSE, version 2009-Jan-02 or later
+   (the contents of which are also included in unzip.h) for terms of use.
+@@ -1888,48 +1888,82 @@ int getZip64Data(__G__ ef_buf, ef_len)
+     and a 4-byte version of disk start number.
+     Sets both local header and central header fields.  Not terribly clever,
+     but it means that this procedure is only called in one place.
++
++    2014-12-05 SMS.
++    Added checks to ensure that enough data are available before calling
++    makeint64() or makelong().  Replaced various sizeof() values with
++    simple ("4" or "8") constants.  (The Zip64 structures do not depend
++    on our variable sizes.)  Error handling is crude, but we should now
++    stay within the buffer.
+   ---------------------------------------------------------------------------*/
+ 
++#define Z64FLGS 0xffff
++#define Z64FLGL 0xffffffff
++
+     if (ef_len == 0 || ef_buf == NULL)
+         return PK_COOL;
+ 
+     Trace((stderr,"\ngetZip64Data: scanning extra field of length %u\n",
+       ef_len));
+ 
+-    while (ef_len >= EB_HEADSIZE) {
++    while (ef_len >= EB_HEADSIZE)
++    {
+         eb_id = makeword(EB_ID + ef_buf);
+         eb_len = makeword(EB_LEN + ef_buf);
+ 
+-        if (eb_len > (ef_len - EB_HEADSIZE)) {
+-            /* discovered some extra field inconsistency! */
++        if (eb_len > (ef_len - EB_HEADSIZE))
++        {
++            /* Extra block length exceeds remaining extra field length. */
+             Trace((stderr,
+               "getZip64Data: block length %u > rest ef_size %u\n", eb_len,
+               ef_len - EB_HEADSIZE));
+             break;
+         }
+-        if (eb_id == EF_PKSZ64) {
+-
++        if (eb_id == EF_PKSZ64)
++        {
+           int offset = EB_HEADSIZE;
+ 
+-          if (G.crec.ucsize == 0xffffffff || G.lrec.ucsize == 0xffffffff){
+-            G.lrec.ucsize = G.crec.ucsize = makeint64(offset + ef_buf);
+-            offset += sizeof(G.crec.ucsize);
++          if ((G.crec.ucsize == Z64FLGL) || (G.lrec.ucsize == Z64FLGL))
++          {
++            if (offset+ 8 > ef_len)
++              return PK_ERR;
++
++            G.crec.ucsize = G.lrec.ucsize = makeint64(offset + ef_buf);
++            offset += 8;
+           }
+-          if (G.crec.csize == 0xffffffff || G.lrec.csize == 0xffffffff){
+-            G.csize = G.lrec.csize = G.crec.csize = makeint64(offset + ef_buf);
+-            offset += sizeof(G.crec.csize);
++
++          if ((G.crec.csize == Z64FLGL) || (G.lrec.csize == Z64FLGL))
++          {
++            if (offset+ 8 > ef_len)
++              return PK_ERR;
++
++            G.csize = G.crec.csize = G.lrec.csize = makeint64(offset + ef_buf);
++            offset += 8;
+           }
+-          if (G.crec.relative_offset_local_header == 0xffffffff){
++
++          if (G.crec.relative_offset_local_header == Z64FLGL)
++          {
++            if (offset+ 8 > ef_len)
++              return PK_ERR;
++
+             G.crec.relative_offset_local_header = makeint64(offset + ef_buf);
+-            offset += sizeof(G.crec.relative_offset_local_header);
++            offset += 8;
+           }
+-          if (G.crec.disk_number_start == 0xffff){
++
++          if (G.crec.disk_number_start == Z64FLGS)
++          {
++            if (offset+ 4 > ef_len)
++              return PK_ERR;
++
+             G.crec.disk_number_start = (zuvl_t)makelong(offset + ef_buf);
+-            offset += sizeof(G.crec.disk_number_start);
++            offset += 4;
+           }
++#if 0
++          break;                /* Expect only one EF_PKSZ64 block. */
++#endif /* 0 */
+         }
+ 
+-        /* Skip this extra field block */
++        /* Skip this extra field block. */
+         ef_buf += (eb_len + EB_HEADSIZE);
+         ef_len -= (eb_len + EB_HEADSIZE);
+     }
+--- a/fileio.c	2009-04-20 02:03:44.000000000 +0200
++++ b/fileio.c	2014-12-05 22:44:16.000000000 +0100
+@@ -176,6 +176,8 @@ static ZCONST char Far FilenameTooLongTr
+ #endif
+ static ZCONST char Far ExtraFieldTooLong[] =
+   "warning:  extra field too long (%d).  Ignoring...\n";
++static ZCONST char Far ExtraFieldCorrupt[] =
++  "warning:  extra field (type: 0x%04x) corrupt.  Continuing...\n";
+ 
+ #ifdef WINDLL
+    static ZCONST char Far DiskFullQuery[] =
+@@ -2295,7 +2297,12 @@ int do_string(__G__ length, option)   /*
+             if (readbuf(__G__ (char *)G.extra_field, length) == 0)
+                 return PK_EOF;
+             /* Looks like here is where extra fields are read */
+-            getZip64Data(__G__ G.extra_field, length);
++            if (getZip64Data(__G__ G.extra_field, length) != PK_COOL)
++            {
++                Info(slide, 0x401, ((char *)slide,
++                 LoadFarString( ExtraFieldCorrupt), EF_PKSZ64));
++                error = PK_WARN;
++            }
+ #ifdef UNICODE_SUPPORT
+             G.unipath_filename = NULL;
+             if (G.UzO.U_flag < 2) {