40 patches, fixing several X.Org CVEs in NX.

* Security fixes:
  - Rebase loads of X.Org patches (mainly from RHEL-5) against NX. If not
    all patches from a CVE patch series appear here, then it means that
    the affected file/code is not used in NX at build time.
  - X.Org CVE-2011-2895:
      1001-LZW-decompress-fix-for-CVE-2011-2895-From-xorg-lib-X.patch
  - X.Org CVE-2011-4028:
      1002-Fix-CVE-2011-4028-File-disclosure-vulnerability.-ups.patch
  - X.Org CVE-2013-4396:
      1003-Avoid-use-after-free-in-dix-dixfonts.c-doImageText-C.patch
  - X.Org CVE-2013-6462:
      1004-CVE-2013-6462-unlimited-sscanf-overflows-stack-buffe.patch
  - X.Org CVE-2014-0209:
      1005-CVE-2014-0209-integer-overflow-of-realloc-size-in-Fo.patch
      1006-CVE-2014-0209-integer-overflow-of-realloc-size-in-le.patch
  - X.Org CVE-2014-0210:
      1007-CVE-2014-0210-unvalidated-length-in-_fs_recv_conn_se.patch
      1009-CVE-2014-0210-unvalidated-lengths-when-reading-repli.patch
      1011-CVE-2014-0210-unvalidated-length-fields-in-fs_read_q.patch
      1014-CVE-2014-0210-unvalidated-length-fields-in-fs_read_e.patch
      1015-CVE-2014-0210-unvalidated-length-fields-in-fs_read_g.patch
      1016-CVE-2014-0210-unvalidated-length-fields-in-fs_read_l.patch
      1017-CVE-2014-0210-unvalidated-length-fields-in-fs_read_l.patch
  - X.Org CVE-2014-0211:
      1010-CVE-2014-0211-Integer-overflow-in-fs_get_reply-_fs_s.patch
      1012-CVE-2014-0211-integer-overflow-in-fs_read_extent_inf.patch
      1013-CVE-2014-0211-integer-overflow-in-fs_alloc_glyphs-fr.patch
      1018-unchecked-malloc-may-allow-unauthed-client-to-crash-.patch
  - X.Org CVE-2014-8092:
      1019-dix-integer-overflow-in-ProcPutImage-CVE-2014-8092-1.patch
      1020-dix-integer-overflow-in-GetHosts-CVE-2014-8092-2-4.patch
      1021-dix-integer-overflow-in-RegionSizeof-CVE-2014-8092-3.patch
      1022-dix-integer-overflow-in-REQUEST_FIXED_SIZE-CVE-2014-.patch
  - X.Org CVE-2014-8097:
      1023-dbe-unvalidated-lengths-in-DbeSwapBuffers-calls-CVE-.patch
  - X.Org CVE-2014-8095:
      1024-Xi-unvalidated-lengths-in-Xinput-extension-CVE-2014-.patch
  - X.Org CVE-2014-8096:
      1025-xcmisc-unvalidated-length-in-SProcXCMiscGetXIDList-C.patch
  - X.Org CVE-2014-8099:
      1026-Xv-unvalidated-lengths-in-XVideo-extension-swapped-p.patch
  - X.Org CVE-2014-8100:
      1027-render-check-request-size-before-reading-it-CVE-2014.patch
      1028-render-unvalidated-lengths-in-Render-extn.-swapped-p.patch
  - X.Org CVE-2014-8102:
      1029-xfixes-unvalidated-length-in-SProcXFixesSelectSelect.patch
  - X.Org CVE-2014-8101:
      1030-randr-unvalidated-lengths-in-RandR-extension-swapped.patch
  - X.Org CVE-2014-8093:
      1031-glx-Be-more-paranoid-about-variable-length-requests-.patch
      1032-glx-Be-more-strict-about-rejecting-invalid-image-siz.patch
      1033-glx-Additional-paranoia-in-__glXGetAnswerBuffer-__GL.patch
      1034-glx-Add-safe_-add-mul-pad-v3-CVE-2014-8093-4-6-v4.patch
      1036-glx-Integer-overflow-protection-for-non-generated-re.patch
  - X.Org CVE-2014-8098:
      1035-glx-Length-checking-for-GLXRender-requests-v2-CVE-20.patch
      1037-glx-Top-level-length-checking-for-swapped-VendorPriv.patch
      1038-glx-Length-checking-for-non-generated-single-request.patch
      1039-glx-Length-checking-for-RenderLarge-requests-v2-CVE-.patch
      1040-glx-Pass-remaining-request-length-into-varsize-v2-CV.patch
  - Security fixes with no assigned CVE:
      1008-Don-t-crash-when-we-receive-an-FS_Error-from-the-fon.patch

1 files changed, 65 insertions, 0 deletions

diff --git a/debian/patches/1010-CVE-2014-0211-Integer-overflow-in-fs_get_reply-_fs_s.patch b/debian/patches/1010-CVE-2014-0211-Integer-overflow-in-fs_get_reply-_fs_s.patch
new file mode 100644
index 000000000..ba883427f
--- /dev/null
+++ b/debian/patches/1010-CVE-2014-0211-Integer-overflow-in-fs_get_reply-_fs_s.patch
@@ -0,0 +1,65 @@
+From 2d724c1a0416895dd39bf33678f42cbb4c51b1ae Mon Sep 17 00:00:00 2001
+From: Mike DePaulo <mikedep333@gmail.com>
+Date: Sun, 8 Feb 2015 21:43:42 -0500
+Subject: [PATCH 10/40] CVE-2014-0211: Integer overflow in
+ fs_get_reply/_fs_start_read from xorg/lib/libXfont commit
+ 0f1a5d372c143f91a602bdf10c917d7eabaee09b
+
+fs_get_reply() would take any reply size, multiply it by 4 and pass to
+_fs_start_read.  If that size was bigger than the current reply buffer
+size, _fs_start_read would add it to the existing buffer size plus the
+buffer size increment constant and realloc the buffer to that result.
+
+This math could overflow, causing the code to allocate a smaller
+buffer than the amount it was about to read into that buffer from
+the network.  It could also succeed, allowing the remote font server
+to cause massive allocations in the X server, possibly using up all
+the address space in a 32-bit X server, allowing the triggering of
+other bugs in code that fails to handle malloc failure properly.
+
+This patch protects against both problems, by disconnecting any
+font server trying to feed us more than (the somewhat arbitrary)
+64 mb in a single reply.
+---
+ nx-X11/lib/font/fc/fserve.c | 18 ++++++++++++++++++
+ 1 file changed, 18 insertions(+)
+
+diff --git a/nx-X11/lib/font/fc/fserve.c b/nx-X11/lib/font/fc/fserve.c
+index ca10aa4..7762653 100644
+--- a/nx-X11/lib/font/fc/fserve.c
++++ b/nx-X11/lib/font/fc/fserve.c
+@@ -100,6 +100,9 @@ in this Software without prior written authorization from The Open Group.
+  */
+ #define LENGTHOF(r)	(SIZEOF(r) >> 2)
+ 
++/* Somewhat arbitrary limit on maximum reply size we'll try to read. */
++#define MAX_REPLY_LENGTH	((64 * 1024 * 1024) >> 2)
++
+ extern void ErrorF(const char *f, ...);
+ 
+ static int fs_read_glyphs ( FontPathElementPtr fpe, FSBlockDataPtr blockrec );
+@@ -630,6 +633,21 @@ fs_get_reply (FSFpePtr conn, int *error)
+     
+     rep = (fsGenericReply *) buf;
+ 
++    /*
++     * Refuse to accept replies longer than a maximum reasonable length,
++     * before we pass to _fs_start_read, since it will try to resize the
++     * incoming connection buffer to this size.  Also avoids integer overflow
++     * on 32-bit systems.
++     */
++    if (rep->length > MAX_REPLY_LENGTH)
++    {
++	ErrorF("fserve: reply length %d > MAX_REPLY_LENGTH, disconnecting"
++	       " from font server\n", rep->length);
++	_fs_connection_died (conn);
++	*error = FSIO_ERROR;
++	return 0;
++    }
++
+     ret = _fs_start_read (conn, rep->length << 2, &buf);
+     if (ret != FSIO_READY)
+     {
+-- 
+2.1.4
+