NixOS · Oct 2, 2019 · Oct 2, 2019 · Oct 2, 2019 · Oct 2, 2019 · Oct 12, 2019
diff --git a/pkgs/development/libraries/glibc/CVE-2018-11236.patch b/pkgs/development/libraries/glibc/CVE-2018-11236.patch
@@ -0,0 +1,146 @@
+From 5460617d1567657621107d895ee2dd83bc1f88f2 Mon Sep 17 00:00:00 2001
+From: Paul Pluzhnikov <ppluzhnikov@google.com>
+Date: Tue, 8 May 2018 18:12:41 -0700
+Subject: [PATCH] Fix BZ 22786: integer addition overflow may cause stack
+ buffer overflow when realpath() input length is close to SSIZE_MAX.
+
+2018-05-09  Paul Pluzhnikov  <ppluzhnikov@google.com>
+
+	[BZ #22786]
+	* stdlib/canonicalize.c (__realpath): Fix overflow in path length
+	computation.
+	* stdlib/Makefile (test-bz22786): New test.
+	* stdlib/test-bz22786.c: New test.
+---
+ ChangeLog             |  8 +++++
+ stdlib/Makefile       |  2 +-
+ stdlib/canonicalize.c |  2 +-
+ stdlib/test-bz22786.c | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++
+ 4 files changed, 100 insertions(+), 2 deletions(-)
+ create mode 100644 stdlib/test-bz22786.c
+
+diff --git a/stdlib/Makefile b/stdlib/Makefile
+index af1643c..1ddb1f9 100644
+--- a/stdlib/Makefile
++++ b/stdlib/Makefile
+@@ -84,7 +84,7 @@ tests		:= tst-strtol tst-strtod testmb testrand testsort testdiv   \
+ 		   tst-cxa_atexit tst-on_exit test-atexit-race 		    \
+ 		   test-at_quick_exit-race test-cxa_atexit-race             \
+ 		   test-on_exit-race test-dlclose-exit-race 		    \
+-		   tst-makecontext-align
++		   tst-makecontext-align test-bz22786
+
+ tests-internal	:= tst-strtod1i tst-strtod3 tst-strtod4 tst-strtod5i \
+ 		   tst-tls-atexit tst-tls-atexit-nodelete
+diff --git a/stdlib/canonicalize.c b/stdlib/canonicalize.c
+index 4135f3f..390fb43 100644
+--- a/stdlib/canonicalize.c
++++ b/stdlib/canonicalize.c
+@@ -181,7 +181,7 @@ __realpath (const char *name, char *resolved)
+ 		extra_buf = __alloca (path_max);
+
+ 	      len = strlen (end);
+-	      if ((long int) (n + len) >= path_max)
++	      if (path_max - n <= len)
+ 		{
+ 		  __set_errno (ENAMETOOLONG);
+ 		  goto error;
+diff --git a/stdlib/test-bz22786.c b/stdlib/test-bz22786.c
+new file mode 100644
+index 0000000..e7837f9
+--- /dev/null
++++ b/stdlib/test-bz22786.c
+@@ -0,0 +1,90 @@
++/* Bug 22786: test for buffer overflow in realpath.
++   Copyright (C) 2018 Free Software Foundation, Inc.
++   This file is part of the GNU C Library.
++
++   The GNU C Library is free software; you can redistribute it and/or
++   modify it under the terms of the GNU Lesser General Public
++   License as published by the Free Software Foundation; either
++   version 2.1 of the License, or (at your option) any later version.
++
++   The GNU C Library 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
++   Lesser General Public License for more details.
++
++   You should have received a copy of the GNU Lesser General Public
++   License along with the GNU C Library; if not, see
++   <http://www.gnu.org/licenses/>.  */
++
++/* This file must be run from within a directory called "stdlib".  */
++
++#include <errno.h>
++#include <limits.h>
++#include <stdio.h>
++#include <stdlib.h>
++#include <string.h>
++#include <unistd.h>
++#include <sys/stat.h>
++#include <sys/types.h>
++#include <support/test-driver.h>
++#include <libc-diag.h>
++
++static int
++do_test (void)
++{
++  const char dir[] = "bz22786";
++  const char lnk[] = "bz22786/symlink";
++
++  rmdir (dir);
++  if (mkdir (dir, 0755) != 0 && errno != EEXIST)
++    {
++      printf ("mkdir %s: %m\n", dir);
++      return EXIT_FAILURE;
++    }
++  if (symlink (".", lnk) != 0 && errno != EEXIST)
++    {
++      printf ("symlink (%s, %s): %m\n", dir, lnk);
++      return EXIT_FAILURE;
++    }
++
++  const size_t path_len = (size_t) INT_MAX + 1;
++
++  DIAG_PUSH_NEEDS_COMMENT;
++#if __GNUC_PREREQ (7, 0)
++  /* GCC 7 warns about too-large allocations; here we need such
++     allocation to succeed for the test to work.  */
++  DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
++#endif
++  char *path = malloc (path_len);
++  DIAG_POP_NEEDS_COMMENT;
++
++  if (path == NULL)
++    {
++      printf ("malloc (%zu): %m\n", path_len);
++      return EXIT_UNSUPPORTED;
++    }
++
++  /* Construct very long path = "bz22786/symlink/aaaa....."  */
++  char *p = mempcpy (path, lnk, sizeof (lnk) - 1);
++  *(p++) = '/';
++  memset (p, 'a', path_len - (path - p) - 2);
++  p[path_len - (path - p) - 1] = '\0';
++
++  /* This call crashes before the fix for bz22786 on 32-bit platforms.  */
++  p = realpath (path, NULL);
++
++  if (p != NULL || errno != ENAMETOOLONG)
++    {
++      printf ("realpath: %s (%m)", p);
++      return EXIT_FAILURE;
++    }
++
++  /* Cleanup.  */
++  unlink (lnk);
++  rmdir (dir);
++
++  return 0;
++}
++
++#define TEST_FUNCTION do_test
++#include <support/test-driver.c>
+-- 
+2.9.3
+
diff --git a/pkgs/development/libraries/glibc/CVE-2018-11237.patch b/pkgs/development/libraries/glibc/CVE-2018-11237.patch
@@ -0,0 +1,55 @@
+From f51c8367685dc888a02f7304c729ed5277904aff Mon Sep 17 00:00:00 2001
+From: Andreas Schwab <schwab@suse.de>
+Date: Thu, 24 May 2018 14:39:18 +0200
+Subject: [PATCH] Don't write beyond destination in
+ __mempcpy_avx512_no_vzeroupper (bug 23196)
+
+When compiled as mempcpy, the return value is the end of the destination
+buffer, thus it cannot be used to refer to the start of it.
+
+(cherry picked from commit 9aaaab7c6e4176e61c59b0a63c6ba906d875dc0e)
+---
+ ChangeLog                                               | 9 +++++++++
+ NEWS                                                    | 7 +++++++
+ string/test-mempcpy.c                                   | 1 +
+ sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S | 5 +++--
+ 4 files changed, 20 insertions(+), 2 deletions(-)
+
+diff --git a/string/test-mempcpy.c b/string/test-mempcpy.c
+index c08fba8..d98ecdd 100644
+--- a/string/test-mempcpy.c
++++ b/string/test-mempcpy.c
+@@ -18,6 +18,7 @@
+    <http://www.gnu.org/licenses/>.  */
+
+ #define MEMCPY_RESULT(dst, len) (dst) + (len)
++#define MIN_PAGE_SIZE 131072
+ #define TEST_MAIN
+ #define TEST_NAME "mempcpy"
+ #include "test-string.h"
+diff --git a/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S b/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S
+index 23c0f7a..effc3ac 100644
+--- a/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S
++++ b/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S
+@@ -336,6 +336,7 @@ L(preloop_large):
+ 	vmovups	(%rsi), %zmm4
+ 	vmovups	0x40(%rsi), %zmm5
+
++	mov	%rdi, %r11
+ /* Align destination for access with non-temporal stores in the loop.  */
+ 	mov	%rdi, %r8
+ 	and	$-0x80, %rdi
+@@ -366,8 +367,8 @@ L(gobble_256bytes_nt_loop):
+ 	cmp	$256, %rdx
+ 	ja	L(gobble_256bytes_nt_loop)
+ 	sfence
+-	vmovups	%zmm4, (%rax)
+-	vmovups	%zmm5, 0x40(%rax)
++	vmovups	%zmm4, (%r11)
++	vmovups	%zmm5, 0x40(%r11)
+ 	jmp	L(check)
+
+ L(preloop_large_bkw):
+-- 
+2.9.3
+
diff --git a/pkgs/development/libraries/glibc/common.nix b/pkgs/development/libraries/glibc/common.nix
@@ -92,6 +92,11 @@ stdenv.mkDerivation ({
         url = "https://salsa.debian.org/glibc-team/glibc/raw/49767c9f7de4828220b691b29de0baf60d8a54ec/debian/patches/localedata/locale-C.diff";
         sha256 = "0irj60hs2i91ilwg5w7sqrxb695c93xg0ik7yhhq9irprd7fidn4";
       })
+
+      # https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5460617d1567657621107d895ee2dd83bc1f88f2
+      ./CVE-2018-11236.patch
+      # https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f51c8367685dc888a02f7304c729ed5277904aff
+      ./CVE-2018-11237.patch
     ]
     ++ lib.optional stdenv.isx86_64 ./fix-x64-abi.patch
     ++ lib.optional stdenv.hostPlatform.isMusl ./fix-rpc-types-musl-conflicts.patch

diff --git a/pkgs/development/libraries/gstreamer/base/default.nix b/pkgs/development/libraries/gstreamer/base/default.nix
@@ -66,5 +66,10 @@ stdenv.mkDerivation rec {
         sha256 = "07x43xis0sr0hfchf36ap0cibx0lkfpqyszb3r3w9dzz301fk04z";
     })
     ./fix_pkgconfig_includedir.patch
+    (fetchurl {
+      url = "https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/commit/f672277509705c4034bc92a141eefee4524d15aa.patch";
+      name = "CVE-2019-9928.patch";
+      sha256 = "0hz3lsq3ppmaf329sbyi05y1qniqfj9vlp2f3z918383pvrcms4i";
+    })
   ];
 }
diff --git a/pkgs/development/libraries/gstreamer/legacy/gst-plugins-base/default.nix b/pkgs/development/libraries/gstreamer/legacy/gst-plugins-base/default.nix
@@ -18,11 +18,18 @@ stdenv.mkDerivation rec {
     sha256 = "0jp6hjlra98cnkal4n6bdmr577q8mcyp3c08s3a02c4hjhw5rr0z";
   };
 
-  patchPhase = ''
+  patches = [
+    ./gcc-4.9.patch
+    (fetchurl {
+      url = "https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/commit/f672277509705c4034bc92a141eefee4524d15aa.patch";
+      name = "CVE-2019-9928.patch";
+      sha256 = "0hz3lsq3ppmaf329sbyi05y1qniqfj9vlp2f3z918383pvrcms4i";
+    })
+  ];
+
+  postPatch = ''
     sed -i 's@/bin/echo@echo@g' configure
     sed -i -e 's/^   /\t/' docs/{libs,plugins}/Makefile.in
-
-    patch -p1 < ${./gcc-4.9.patch}
   '';
 
   outputs = [ "out" "dev" ];