gnu: glib: Fix CVE-2021-27218 and CVE-2021-27219.

* gnu/packages/patches/glib-CVE-2021-27218.patch,
gnu/packages/patches/glib-CVE-2021-27219-01.patch,
gnu/packages/patches/glib-CVE-2021-27219-02.patch,
gnu/packages/patches/glib-CVE-2021-27219-03.patch,
gnu/packages/patches/glib-CVE-2021-27219-04.patch,
gnu/packages/patches/glib-CVE-2021-27219-05.patch,
gnu/packages/patches/glib-CVE-2021-27219-06.patch,
gnu/packages/patches/glib-CVE-2021-27219-07.patch,
gnu/packages/patches/glib-CVE-2021-27219-08.patch,
gnu/packages/patches/glib-CVE-2021-27219-09.patch,
gnu/packages/patches/glib-CVE-2021-27219-10.patch,
gnu/packages/patches/glib-CVE-2021-27219-11.patch,
gnu/packages/patches/glib-CVE-2021-27219-12.patch,
gnu/packages/patches/glib-CVE-2021-27219-13.patch,
gnu/packages/patches/glib-CVE-2021-27219-14.patch,
gnu/packages/patches/glib-CVE-2021-27219-15.patch,
gnu/packages/patches/glib-CVE-2021-27219-16.patch,
gnu/packages/patches/glib-CVE-2021-27219-17.patch,
gnu/packages/patches/glib-CVE-2021-27219-18.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/glib.scm (glib)[replacement]: New field.
(glib/fixed): New variable.

1 files changed, 94 insertions, 0 deletions

diff --git a/gnu/packages/patches/glib-CVE-2021-27219-06.patch b/gnu/packages/patches/glib-CVE-2021-27219-06.patch
new file mode 100644
index 0000000000..4e2435f5fd
--- /dev/null
+++ b/gnu/packages/patches/glib-CVE-2021-27219-06.patch
@@ -0,0 +1,94 @@
+From f9ee2275cbc312c0b4cdbc338a4fbb76eb36fb9a Mon Sep 17 00:00:00 2001
+From: Philip Withnall <pwithnall@endlessos.org>
+Date: Thu, 4 Feb 2021 13:49:00 +0000
+Subject: [PATCH 06/11] gdatainputstream: Handle stop_chars_len internally as
+ gsize
+
+Previously it was handled as a `gssize`, which meant that if the
+`stop_chars` string was longer than `G_MAXSSIZE` there would be an
+overflow.
+
+Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
+Helps: #2319
+---
+ gio/gdatainputstream.c | 25 +++++++++++++++++--------
+ 1 file changed, 17 insertions(+), 8 deletions(-)
+
+diff --git a/gio/gdatainputstream.c b/gio/gdatainputstream.c
+index 2e7750cb5..2cdcbda19 100644
+--- a/gio/gdatainputstream.c
++++ b/gio/gdatainputstream.c
+@@ -27,6 +27,7 @@
+ #include "gioenumtypes.h"
+ #include "gioerror.h"
+ #include "glibintl.h"
++#include "gstrfuncsprivate.h"
+ 
+ #include <string.h>
+ 
+@@ -856,7 +857,7 @@ static gssize
+ scan_for_chars (GDataInputStream *stream,
+ 		gsize            *checked_out,
+ 		const char       *stop_chars,
+-                gssize            stop_chars_len)
++                gsize             stop_chars_len)
+ {
+   GBufferedInputStream *bstream;
+   const char *buffer;
+@@ -952,7 +953,7 @@ typedef struct
+   gsize checked;
+ 
+   gchar *stop_chars;
+-  gssize stop_chars_len;
++  gsize stop_chars_len;
+   gsize length;
+ } GDataInputStreamReadData;
+ 
+@@ -1078,12 +1079,17 @@ g_data_input_stream_read_async (GDataInputStream    *stream,
+ {
+   GDataInputStreamReadData *data;
+   GTask *task;
++  gsize stop_chars_len_unsigned;
+ 
+   data = g_slice_new0 (GDataInputStreamReadData);
+-  if (stop_chars_len == -1)
+-    stop_chars_len = strlen (stop_chars);
+-  data->stop_chars = g_memdup (stop_chars, stop_chars_len);
+-  data->stop_chars_len = stop_chars_len;
++
++  if (stop_chars_len < 0)
++    stop_chars_len_unsigned = strlen (stop_chars);
++  else
++    stop_chars_len_unsigned = (gsize) stop_chars_len;
++
++  data->stop_chars = g_memdup2 (stop_chars, stop_chars_len_unsigned);
++  data->stop_chars_len = stop_chars_len_unsigned;
+   data->last_saw_cr = FALSE;
+ 
+   task = g_task_new (stream, cancellable, callback, user_data);
+@@ -1338,17 +1344,20 @@ g_data_input_stream_read_upto (GDataInputStream  *stream,
+   gssize found_pos;
+   gssize res;
+   char *data_until;
++  gsize stop_chars_len_unsigned;
+ 
+   g_return_val_if_fail (G_IS_DATA_INPUT_STREAM (stream), NULL);
+ 
+   if (stop_chars_len < 0)
+-    stop_chars_len = strlen (stop_chars);
++    stop_chars_len_unsigned = strlen (stop_chars);
++  else
++    stop_chars_len_unsigned = (gsize) stop_chars_len;
+ 
+   bstream = G_BUFFERED_INPUT_STREAM (stream);
+ 
+   checked = 0;
+ 
+-  while ((found_pos = scan_for_chars (stream, &checked, stop_chars, stop_chars_len)) == -1)
++  while ((found_pos = scan_for_chars (stream, &checked, stop_chars, stop_chars_len_unsigned)) == -1)
+     {
+       if (g_buffered_input_stream_get_available (bstream) ==
+           g_buffered_input_stream_get_buffer_size (bstream))
+-- 
+2.30.1
+