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From d8f8f4d637ce43f8699ba94c9b7648beda0ca174 Mon Sep 17 00:00:00 2001
From: Ondrej Holy <oholy@redhat.com>
Date: Thu, 23 May 2019 10:41:53 +0200
Subject: [PATCH] gfile: Limit access to files when copying
file_copy_fallback creates new files with default permissions and
set the correct permissions after the operation is finished. This
might cause that the files can be accessible by more users during
the operation than expected. Use G_FILE_CREATE_PRIVATE for the new
files to limit access to those files.
Upstream-Status: Backport
https://gitlab.gnome.org/GNOME/glib/commit/d8f8f4d637ce43f8699ba94c9b7648beda0ca174
CVE: CVE-2019-12450
Signed-off-by: Armin kuster <akuster@mvista.com>
---
gio/gfile.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/gio/gfile.c b/gio/gfile.c
index 24b136d..74b5804 100644
--- a/gio/gfile.c
+++ b/gio/gfile.c
@@ -3284,12 +3284,12 @@ file_copy_fallback (GFile *source,
out = (GOutputStream*)_g_local_file_output_stream_replace (_g_local_file_get_filename (G_LOCAL_FILE (destination)),
FALSE, NULL,
flags & G_FILE_COPY_BACKUP,
- G_FILE_CREATE_REPLACE_DESTINATION,
- info,
+ G_FILE_CREATE_REPLACE_DESTINATION |
+ G_FILE_CREATE_PRIVATE, info,
cancellable, error);
else
out = (GOutputStream*)_g_local_file_output_stream_create (_g_local_file_get_filename (G_LOCAL_FILE (destination)),
- FALSE, 0, info,
+ FALSE, G_FILE_CREATE_PRIVATE, info,
cancellable, error);
}
else if (flags & G_FILE_COPY_OVERWRITE)
@@ -3297,12 +3297,13 @@ file_copy_fallback (GFile *source,
out = (GOutputStream *)g_file_replace (destination,
NULL,
flags & G_FILE_COPY_BACKUP,
- G_FILE_CREATE_REPLACE_DESTINATION,
+ G_FILE_CREATE_REPLACE_DESTINATION |
+ G_FILE_CREATE_PRIVATE,
cancellable, error);
}
else
{
- out = (GOutputStream *)g_file_create (destination, 0, cancellable, error);
+ out = (GOutputStream *)g_file_create (destination, G_FILE_CREATE_PRIVATE, cancellable, error);
}
if (!out)
--
2.7.4
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