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From 373f5d38e3c8fbc4bc466312c659974d31a68ac4 Mon Sep 17 00:00:00 2001
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From: Jakub Filak <jfilak@redhat.com>
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Date: Wed, 30 Sep 2015 12:17:47 +0200
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Subject: [PATCH] conf: introduce DebugLevel
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ABRT should ignore problems caused by ABRT tools if DebugLevel == 0.
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DebugLevel is set to 0 by default.
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Related to CVE-2015-5287
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Related: #1262252
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Signed-off-by: Jakub Filak <jfilak@redhat.com>
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---
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doc/abrt.conf.txt | 8 ++++++++
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src/daemon/abrt.conf | 8 ++++++++
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src/include/libabrt.h | 2 ++
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src/lib/abrt_conf.c | 14 ++++++++++++++
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4 files changed, 32 insertions(+)
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diff --git a/doc/abrt.conf.txt b/doc/abrt.conf.txt
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index d782e3d..7ef78f0 100644
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--- a/doc/abrt.conf.txt
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+++ b/doc/abrt.conf.txt
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@@ -36,6 +36,14 @@ DeleteUploaded = 'yes/no'::
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or not.
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The default value is 'no'.
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+DebugLevel = '0-100':
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+ Allows ABRT tools to detect problems in ABRT itself. By increasing the value
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+ you can force ABRT to detect, process and report problems in ABRT. You have
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+ to bare in mind that ABRT might fall into an infinite loop when handling
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+ problems caused by itself.
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+ The default is 0 (non debug mode).
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+
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+
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SEE ALSO
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--------
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abrtd(8)
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diff --git a/src/daemon/abrt.conf b/src/daemon/abrt.conf
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index 2a83f8e..24df20b 100644
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--- a/src/daemon/abrt.conf
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+++ b/src/daemon/abrt.conf
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@@ -51,3 +51,11 @@ AutoreportingEnabled = no
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# THE PROBLEM DATA CONTAINS EXCERPTS OF /var/log/messages, dmesg AND sosreport
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# data GENERATED BY abrtd UNDER THE USER root.
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PrivateReports = yes
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+
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+# Allows ABRT tools to detect problems in ABRT itself. By increasing the value
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+# you can force ABRT to detect, process and report problems in ABRT. You have
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+# to bare in mind that ABRT might fall into an infinite loop when handling
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+# problems caused by itself.
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+# The default is 0 (non debug mode).
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+#
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+# DebugLevel = 0
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diff --git a/src/include/libabrt.h b/src/include/libabrt.h
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index 3b17a64..21ce440 100644
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--- a/src/include/libabrt.h
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+++ b/src/include/libabrt.h
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@@ -70,6 +70,8 @@ extern char * g_settings_autoreporting_event;
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extern bool g_settings_shortenedreporting;
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#define g_settings_privatereports abrt_g_settings_privatereports
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extern bool g_settings_privatereports;
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+#define g_settings_debug_level abrt_g_settings_debug_level
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+extern unsigned int g_settings_debug_level;
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#define load_abrt_conf abrt_load_abrt_conf
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diff --git a/src/lib/abrt_conf.c b/src/lib/abrt_conf.c
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index c6aba58..4a49032 100644
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--- a/src/lib/abrt_conf.c
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+++ b/src/lib/abrt_conf.c
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@@ -28,6 +28,7 @@ bool g_settings_autoreporting = 0;
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char * g_settings_autoreporting_event = NULL;
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bool g_settings_shortenedreporting = 0;
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bool g_settings_privatereports = true;
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+unsigned int g_settings_debug_level = 0;
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void free_abrt_conf_data()
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{
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@@ -110,6 +111,19 @@ static void ParseCommon(map_string_t *settings, const char *conf_filename)
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remove_map_string_item(settings, "PrivateReports");
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}
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+ value = get_map_string_item_or_NULL(settings, "DebugLevel");
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+ if (value)
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+ {
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+ char *end;
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+ errno = 0;
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+ unsigned long ul = strtoul(value, &end, 10);
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+ if (errno || end == value || *end != '\0' || ul > INT_MAX)
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+ error_msg("Error parsing %s setting: '%s'", "DebugLevel", value);
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+ else
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+ g_settings_debug_level = ul;
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+ remove_map_string_item(settings, "DebugLevel");
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+ }
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+
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GHashTableIter iter;
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const char *name;
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/*char *value; - already declared */
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--
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1.8.3.1
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