gnu: cpio: Add fixes for CVE-2014-9112.

* gnu/packages/patches/cpio-CVE-2014-9112-pt1.patch,
  gnu/packages/patches/cpio-CVE-2014-9112-pt2.patch,
  gnu/packages/patches/cpio-CVE-2014-9112-pt3.patch,
  gnu/packages/patches/cpio-CVE-2014-9112-pt4.patch,
  gnu/packages/patches/cpio-CVE-2014-9112-pt5.patch: New files.
* gnu-system.am (dist_patch_DATA): Add them.
* gnu/packages/cpio.scm (cpio): Add patches.  Add 'autoconf' to
  native-inputs.

1 files changed, 231 insertions, 0 deletions

diff --git a/gnu/packages/patches/cpio-CVE-2014-9112-pt1.patch b/gnu/packages/patches/cpio-CVE-2014-9112-pt1.patch
new file mode 100644
index 0000000000..1224c6c22d
--- /dev/null
+++ b/gnu/packages/patches/cpio-CVE-2014-9112-pt1.patch
@@ -0,0 +1,231 @@
+Partially fix CVE-2014-9112, part 1/5.  Backported to 2.11.
+
+From 746f3ff670dcfcdd28fcc990e79cd6fccc7ae48d Mon Sep 17 00:00:00 2001
+From: Sergey Poznyakoff <gray@gnu.org.ua>
+Date: Mon, 01 Dec 2014 13:15:28 +0000
+Subject: Fix memory overrun on reading improperly created link records.
+
+See http://lists.gnu.org/archive/html/bug-cpio/2014-11/msg00007.html
+
+* src/copyin.c (get_link_name): New function.
+(list_file, copyin_link): use get_link_name
+
+* tests/symlink-bad-length.at: New file.
+* tests/symlink-long.at: New file.
+* tests/Makefile.am: Add new files.
+* tests/testsuite.at: Likewise.
+---
+diff --git a/src/copyin.c b/src/copyin.c
+index 38d809f..c502c7d 100644
+--- a/src/copyin.c
++++ b/src/copyin.c
+@@ -124,10 +124,30 @@ tape_skip_padding (int in_file_des, off_t offset)
+   if (pad != 0)
+     tape_toss_input (in_file_des, pad);
+ }
+-
++
++static char *
++get_link_name (struct cpio_file_stat *file_hdr, int in_file_des)
++{
++  off_t n = file_hdr->c_filesize + 1;
++  char *link_name;
++  
++  if (n == 0 || n > SIZE_MAX)
++    {
++      error (0, 0, _("%s: stored filename length too big"), file_hdr->c_name);
++      link_name = NULL;
++    }
++  else
++    {
++      link_name = xmalloc (n);
++      tape_buffered_read (link_name, in_file_des, file_hdr->c_filesize);
++      link_name[file_hdr->c_filesize] = '\0';
++      tape_skip_padding (in_file_des, file_hdr->c_filesize);
++    }
++  return link_name;
++}
+ 
+ static void
+-list_file(struct cpio_file_stat* file_hdr, int in_file_des)
++list_file (struct cpio_file_stat* file_hdr, int in_file_des)
+ {
+   if (verbose_flag)
+     {
+@@ -136,21 +156,16 @@ list_file(struct cpio_file_stat* file_hdr, int in_file_des)
+ 	{
+ 	  if (archive_format != arf_tar && archive_format != arf_ustar)
+ 	    {
+-	      char *link_name = NULL;	/* Name of hard and symbolic links.  */
+-
+-	      link_name = (char *) xmalloc ((unsigned int) file_hdr->c_filesize + 1);
+-	      link_name[file_hdr->c_filesize] = '\0';
+-	      tape_buffered_read (link_name, in_file_des, file_hdr->c_filesize);
+-	      long_format (file_hdr, link_name);
+-	      free (link_name);
+-	      tape_skip_padding (in_file_des, file_hdr->c_filesize);
+-	      return;
++	      char *link_name = get_link_name (file_hdr, in_file_des);
++	      if (link_name)
++		{
++		  long_format (file_hdr, link_name);
++		  free (link_name);
++		}
+ 	    }
+ 	  else
+-	    {
+-	      long_format (file_hdr, file_hdr->c_tar_linkname);
+-	      return;
+-	    }
++	    long_format (file_hdr, file_hdr->c_tar_linkname);
++	  return;
+ 	}
+       else
+ #endif
+@@ -650,10 +665,7 @@ copyin_link(struct cpio_file_stat *file_
+ 
+   if (archive_format != arf_tar && archive_format != arf_ustar)
+     {
+-      link_name = (char *) xmalloc ((unsigned int) file_hdr->c_filesize + 1);
+-      link_name[file_hdr->c_filesize] = '\0';
+-      tape_buffered_read (link_name, in_file_des, file_hdr->c_filesize);
+-      tape_skip_padding (in_file_des, file_hdr->c_filesize);
++      link_name = get_link_name (file_hdr, in_file_des);
+     }
+   else
+     {
+diff --git a/tests/Makefile.am b/tests/Makefile.am
+index 3f714d1..b4ca92d 100644
+--- a/tests/Makefile.am
++++ b/tests/Makefile.am
+@@ -52,6 +52,8 @@ TESTSUITE_AT = \
+  setstat04.at\
+  setstat05.at\
+  symlink.at\
++ symlink-bad-length.at\
++ symlink-long.at\
+  version.at
+ 
+ TESTSUITE = $(srcdir)/testsuite
+diff --git a/tests/symlink-bad-length.at b/tests/symlink-bad-length.at
+new file mode 100644
+index 0000000..6f804b1
+--- a/dev/null
++++ b/tests/symlink-bad-length.at
+@@ -0,0 +1,49 @@
++# Process this file with autom4te to create testsuite.  -*- Autotest -*-
++# Copyright (C) 2014 Free Software Foundation, Inc.
++
++# This program is free software; you can redistribute it and/or modify
++# it under the terms of the GNU General Public License as published by
++# the Free Software Foundation; either version 3, or (at your option)
++# any later version.
++
++# This program is distributed in the hope that it will be useful,
++# but WITHOUT ANY WARRANTY; without even the implied warranty of
++# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++# GNU General Public License for more details.
++
++# You should have received a copy of the GNU General Public License
++# along with this program; if not, write to the Free Software
++# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
++# 02110-1301 USA.
++
++# Cpio v2.11 did segfault with badly set symlink length.
++# References:
++# http://lists.gnu.org/archive/html/bug-cpio/2014-11/msg00007.html
++
++AT_SETUP([symlink-bad-length])
++AT_KEYWORDS([symlink-long copyout])
++
++AT_DATA([ARCHIVE.base64],
++[x3EjAIBAtIEtJy8nAQAAAHRUYW0FAAAADQBGSUxFAABzb21lIGNvbnRlbnQKAMdxIwBgQ/+hLScv
++JwEAAAB0VEhuBQD/////TElOSwAARklMRcdxAAAAAAAAAAAAAAEAAAAAAAAACwAAAAAAVFJBSUxF
++UiEhIQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
++AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
++AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
++AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
++AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
++AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
++AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
++])
++
++AT_CHECK([
++base64 -d ARCHIVE.base64 > ARCHIVE || AT_SKIP_TEST
++cpio -ntv < ARCHIVE
++test $? -eq 2
++],
++[0],
++[-rw-rw-r--   1 10029    10031          13 Nov 25 13:52 FILE
++],[cpio: LINK: stored filename length too big
++cpio: premature end of file
++])
++
++AT_CLEANUP
+diff --git a/tests/symlink-long.at b/tests/symlink-long.at
+new file mode 100644
+index 0000000..d3def2d
+--- a/dev/null
++++ b/tests/symlink-long.at
+@@ -0,0 +1,46 @@
++# Process this file with autom4te to create testsuite.  -*- Autotest -*-
++# Copyright (C) 2014 Free Software Foundation, Inc.
++
++# This program is free software; you can redistribute it and/or modify
++# it under the terms of the GNU General Public License as published by
++# the Free Software Foundation; either version 3, or (at your option)
++# any later version.
++
++# This program is distributed in the hope that it will be useful,
++# but WITHOUT ANY WARRANTY; without even the implied warranty of
++# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++# GNU General Public License for more details.
++
++# You should have received a copy of the GNU General Public License
++# along with this program; if not, write to the Free Software
++# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
++# 02110-1301 USA.
++
++# Cpio v2.11.90 changed the way symlink name is read from archive.
++# References:
++# http://lists.gnu.org/archive/html/bug-cpio/2014-11/msg00007.html
++
++AT_SETUP([symlink-long])
++AT_KEYWORDS([symlink-long copyout])
++
++AT_CHECK([
++
++# len(dirname) > READBUFSIZE
++dirname=
++for i in {1..52}; do
++    dirname="xxxxxxxxx/$dirname"
++    mkdir "$dirname"
++done
++ln -s "$dirname" x || AT_SKIP_TEST
++
++echo x | cpio -o > ar
++list=`cpio -tv < ar | sed 's|.*-> ||'`
++test "$list" = "$dirname" && echo success || echo fail
++],
++[0],
++[success
++],[2 blocks
++2 blocks
++])
++
++AT_CLEANUP
+diff --git a/tests/testsuite.at b/tests/testsuite.at
+index e67689f..3b5377e 100644
+--- a/tests/testsuite.at
++++ b/tests/testsuite.at
+@@ -31,6 +31,8 @@ m4_include([version.at])
+ 
+ m4_include([inout.at])
+ m4_include([symlink.at])
++m4_include([symlink-bad-length.at])
++m4_include([symlink-long.at])
+ m4_include([interdir.at])
+ 
+ m4_include([setstat01.at])
+--
+cgit v0.9.0.2