Move the default dump location to /var/spool/abrt from /var/tmp/abrt and Use root for owner of all dump directories Fixes for CVE-2015-3315, CVE-2015-3142, CVE-2015-1869, CVE-2015-1870 Fixes for CVE-2015-3147, CVE-2015-3151, CVE-2015-3150, CVE-2015-3159 Resolves: #1179752 Signed-off-by: Matej Habrnal <mhabrnal@redhat.com>
92 lines
3.4 KiB
Diff
92 lines
3.4 KiB
Diff
From 23c800077fb6e821d54080ccc5d1258f37fcd8d4 Mon Sep 17 00:00:00 2001
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From: Jakub Filak <jfilak@redhat.com>
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Date: Mon, 27 Apr 2015 07:52:00 +0200
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Subject: [PATCH] dbus: report invalid element names
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Return D-Bus error in case of invalid problem element name.
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Related: #1214451
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Signed-off-by: Jakub Filak <jfilak@redhat.com>
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---
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src/dbus/abrt-dbus.c | 35 +++++++++++++++++++++++++----------
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1 file changed, 25 insertions(+), 10 deletions(-)
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diff --git a/src/dbus/abrt-dbus.c b/src/dbus/abrt-dbus.c
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index 0f7ac2d..489d273 100644
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--- a/src/dbus/abrt-dbus.c
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+++ b/src/dbus/abrt-dbus.c
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@@ -158,6 +158,21 @@ bool allowed_problem_dir(const char *dir_name)
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return true;
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}
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+bool allowed_problem_element(GDBusMethodInvocation *invocation, const char *element)
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+{
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+ if (str_is_correct_filename(element))
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+ return true;
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+
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+ log_notice("'%s' is not a valid element name", element);
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+ char *error = xasprintf(_("'%s' is not a valid element name"), element);
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+ g_dbus_method_invocation_return_dbus_error(invocation,
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+ "org.freedesktop.problems.InvalidElement",
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+ error);
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+
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+ free(error);
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+ return false;
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+}
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+
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static char *handle_new_problem(GVariant *problem_info, uid_t caller_uid, char **error)
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{
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problem_data_t *pd = problem_data_new();
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@@ -627,17 +642,8 @@ static void handle_method_call(GDBusConnection *connection,
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g_variant_get(parameters, "(&s&s&s)", &problem_id, &element, &value);
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- if (element == NULL || element[0] == '\0' || strlen(element) > 64)
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- {
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- log_notice("'%s' is not a valid element name of '%s'", element, problem_id);
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- char *error = xasprintf(_("'%s' is not a valid element name"), element);
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- g_dbus_method_invocation_return_dbus_error(invocation,
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- "org.freedesktop.problems.InvalidElement",
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- error);
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-
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- free(error);
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+ if (!allowed_problem_element(invocation, element))
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return;
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- }
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struct dump_dir *dd = open_directory_for_modification_of_element(
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invocation, caller_uid, problem_id, element);
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@@ -686,6 +692,9 @@ static void handle_method_call(GDBusConnection *connection,
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g_variant_get(parameters, "(&s&s)", &problem_id, &element);
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+ if (!allowed_problem_element(invocation, element))
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+ return;
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+
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struct dump_dir *dd = open_directory_for_modification_of_element(
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invocation, caller_uid, problem_id, element);
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if (!dd)
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@@ -718,6 +727,9 @@ static void handle_method_call(GDBusConnection *connection,
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g_variant_get(parameters, "(&s&s)", &problem_id, &element);
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+ if (!allowed_problem_element(invocation, element))
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+ return;
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+
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struct dump_dir *dd = open_dump_directory(invocation, caller, caller_uid,
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problem_id, DD_OPEN_READONLY, OPEN_AUTH_ASK);
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if (!dd)
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@@ -790,6 +802,9 @@ static void handle_method_call(GDBusConnection *connection,
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g_variant_get_child(parameters, 3, "x", ×tamp_to);
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g_variant_get_child(parameters, 4, "b", &all);
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+ if (!allowed_problem_element(invocation, element))
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+ return;
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+
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if (all && polkit_check_authorization_dname(caller, "org.freedesktop.problems.getall") == PolkitYes)
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caller_uid = 0;
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--
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2.1.0
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