JVN/CVE Demo: Jvninfos

JVN Info.

Id: 2131
Name: JVNDB-2016-002904
Title: QEMU の hw/i386/kvmvapic.c の patch_instruction 関数におけるホストスタックメモリから重要な情報を取得される脆弱性
Summary: QEMU の hw/i386/kvmvapic.c の patch_instruction 関数は、imm32 変数を初期化しないため、ホストスタックメモリから重要な情報を取得される脆弱性が存在します。
Nvdinfo: CVE-2016-4020
Cvssv2: 2.1
Jvnurl: http://jvndb.jvn.jp/ja/contents/2016/JVNDB-2016-002904.html
Published Date: 2016-05-23
Registered Date: 2016-05-27
Last Updated Date: 2016-05-27

Actions

History
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Request History
4 previous requests available
====
Session
+
Session
- 0(null)
====
Request
+
Request

Cake Params
- plugin(null)
- controllerjvninfos
- actionview
- named(empty)
- pass(array)
  02131
Post data

No post data.

Query string

No querystring data.

Cookie

To view Cookies, add CookieComponent to Controller

Current Route
- keys(array)
  0controller
  1action
- options(array)
  defaultRoute(true)
- defaults(array)
  plugin(null)
- template/:controller/:action/*
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Sql Log
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Sql Logs

default
No query logs.

====

Timer

Memory

Peak Memory Use 3.96 MB

Message	Memory use
Component initialization	1.38 MB
Controller action start	1.48 MB
Controller render start	2.31 MB
View render complete	2.65 MB

Timers

Total Request Time: 74 (ms)

Message	Time in ms	Graph
Core Processing (Derived from $_SERVER["REQUEST_TIME"])	3.20
Event: Controller.initialize	0.02
Event: Controller.startup	0.07
Controller action	58.90
Event: Controller.beforeRender	4.98
» Processing toolbar data	4.90
Rendering View	1.74
» Event: View.beforeRender	0.02
» Rendering APP/View/Jvninfos/view.ctp	0.75
» Event: View.afterRender	0.02
» Event: View.beforeLayout	0.02
» Rendering APP/View/Layouts/default.ctp	0.59
» » Rendering CORE/Cake/View/Elements/sql_dump.ctp	0.17
Event: View.afterLayout	0.00

====

Log
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Logs

There were no log entries made this request

====
Variables
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View Variables
- jvninfo(array)
  Jvninfo(array)
  id2131
  nameJVNDB-2016-002904
  titleQEMU の hw/i386/kvmvapic.c の patch_instruction 関数におけるホストスタックメモリから重要な情報を取得される脆弱性
  summaryQEMU の hw/i386/kvmvapic.c の patch_instruction 関数は、imm32 変数を初期化しないため、ホストスタックメモリから重要な情報を取得される脆弱性が存在します。
  cveinfo_nameCVE-2016-4020
  cveinfo_id90526
  nvdinfo_nameCVE-2016-4020
  nvdinfo_id19742
  cvssv22.1
  cvssv36.5
  jvnurlhttp://jvndb.jvn.jp/ja/contents/2016/JVNDB-2016-002904.html
  published_date2016-05-23
  registered_date2016-05-27
  last_updated_date2016-05-27
  deleted(null)
  created0000-00-00 00:00:00
  modified(null)
  Cveinfo(array)
  id90526
  nameCVE-2016-3707
  statusCandidate
  descriptionThe icmp_check_sysrq function in net/ipv4/icmp.c in the kernel.org projects/rt patches for the Linux kernel, as used in the kernel-rt package before 3.10.0-327.22.1 in Red Hat Enterprise Linux for Real Time 7 and other products, allows remote attackers to execute SysRq commands via crafted ICMP Echo Request packets, as demonstrated by a brute-force attack to discover a cookie, or an attack that occurs after reading the local icmp_echo_sysrq file.
  phaseAssigned (20160330)
  votesNone (candidate not yet proposed)
  comments(null)
  deleted(null)
  created0000-00-00 00:00:00
  modified0000-00-00 00:00:00
  Nvdinfo(array)
  id19742
  nameCVE-2016-4020
  descriptionThe patch_instruction function in hw/i386/kvmvapic.c in QEMU does not initialize the imm32 variable, which allows local guest OS administrators to obtain sensitive information from host stack memory by accessing the Task Priority Register (TPR).
  reject(null)
  CVSS_version2
  CVSS_score2.1
  severityLow
  CVSS_base_score2.1
  CVSS_impact_subscore2.9
  CVSS_exploit_subscore3.9
  nvd_xml_version(null)
  CVSS_vector(AV:L/AC:L/Au:N/C:P/I:N/A:N)
  sourcecve
  pub_date2017-01-19
  published2016-05-25
  modified_date2016-11-28
  typeCVE
  seq2016-4020
  deleted(null)
  created(null)
  modified(null)
  Nessuslog(empty)
- $request->data(empty)
- $this->validationErrors(array)
  Jvninfo(empty)
  Cveinfo(empty)
  Nvdinfo(empty)
  Nessuslog(empty)
- Loaded Helpers(array)
  0Number
  1SimpleGraph
  2DebugTimer
  3Toolbar
  4Html
  5Text
  6Session
  7HtmlToolbar
====

Environment

App Constants

No application environment available.

CakePHP Constants

Constant	Value
APP	/virtual/inogo77/public_html/jvn/app/
APP_DIR	app
APPLIBS	/virtual/inogo77/public_html/jvn/app/Lib/
CACHE	/virtual/inogo77/public_html/jvn/app/tmp/cache/
CAKE	/virtual/inogo77/public_html/jvn/lib/Cake/
CAKE_CORE_INCLUDE_PATH	/virtual/inogo77/public_html/jvn/lib
CORE_PATH	/virtual/inogo77/public_html/jvn/lib/
CAKE_VERSION	2.6.0
CSS	/virtual/inogo77/public_html/jvn/app/webroot/css/
CSS_URL	css/
DS	/
FULL_BASE_URL	http://inogo77.s500.xrea.com
IMAGES	/virtual/inogo77/public_html/jvn/app/webroot/img/
IMAGES_URL	img/
JS	/virtual/inogo77/public_html/jvn/app/webroot/js/
JS_URL	js/
LOGS	/virtual/inogo77/public_html/jvn/app/tmp/logs/
ROOT	/virtual/inogo77/public_html/jvn
TESTS	/virtual/inogo77/public_html/jvn/app/Test/
TMP	/virtual/inogo77/public_html/jvn/app/tmp/
VENDORS	/virtual/inogo77/public_html/jvn/vendors/
WEBROOT_DIR	webroot
WWW_ROOT	/virtual/inogo77/public_html/jvn/app/webroot/

PHP Environment

Environment Variable	Value
Php Version	5.6.40
Phprc	php56.ini
Php Fcgi Children	1
Pwd	/virtual/inogo77/public_html/.fast-cgi-bin
Php Fcgi Max Requests	10000
Shlvl	0
Path	/usr/local/bin:/usr/bin:/bin
Http Connection	close
Script Name	/jvn/app/webroot/index.php
Request Uri	/jvn/jvninfos/view/2131
Query String
Request Method	GET
Server Protocol	HTTP/1.1
Gateway Interface	CGI/1.1
Redirect Url	/jvn/app/webroot/jvninfos/view/2131
Remote Port	37736
Script Filename	/virtual/inogo77/public_html/jvn/app/webroot/index.php
Server Admin	[no address given]
Context Document Root	/virtual/inogo77/public_html
Context Prefix
Request Scheme	http
Document Root	/virtual/inogo77/public_html
Remote Addr	18.224.96.135
Server Port	80
Server Addr	160.251.151.205
Server Name	inogo77.s500.xrea.com
Server Software	Apache
Server Signature
Http Host	inogo77.s500.xrea.com
Http Accept Encoding	gzip, br, zstd, deflate
Http User Agent	Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
Http Accept	/
Gem Home	/usr/local/rvm/gems/ruby-2.3.0
X Dostranslated Ip	18.224.96.135
Mm Country Code	US
Mmdb Info	result found
Mmdb Addr	18.224.96.135
Unique Id	aCOshBw7YhEiWVDi-X7WmAAAAIU
Redirect Status	200
Redirect Gem Home	/usr/local/rvm/gems/ruby-2.3.0
Redirect X Dostranslated Ip	18.224.96.135
Redirect Mm Country Code	US
Redirect Mmdb Info	result found
Redirect Mmdb Addr	18.224.96.135
Redirect Unique Id	aCOshBw7YhEiWVDi-X7WmAAAAIU
Redirect Redirect Status	200
Redirect Redirect Gem Home	/usr/local/rvm/gems/ruby-2.3.0
Redirect Redirect X Dostranslated Ip	18.224.96.135
Redirect Redirect Mm Country Code	US
Redirect Redirect Mmdb Info	result found
Redirect Redirect Mmdb Addr	18.224.96.135
Redirect Redirect Unique Id	aCOshBw7YhEiWVDi-X7WmAAAAIU
Fcgi Role	RESPONDER
Php Self	/jvn/app/webroot/index.php
Request Time Float	1747168388.2457
Request Time	1747168388

====

Include
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Included Files

Include Paths
- 0/virtual/inogo77/public_html/jvn/lib
- 2/opt/remi/php56/root/usr/share/pear
- 3/opt/remi/php56/root/usr/share/php
- 4/usr/share/pear
- 5/usr/share/php
- 6-> /virtual/inogo77/public_html/jvn/lib/Cake/
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  1APP/Controller/AppController.php
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  0APP/webroot/index.php
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  10DebugKit/Lib/Panel/IncludePanel.php
  11DebugKit/Lib/DebugTimer.php
  Log(array)
  0DebugKit/Lib/Log/Engine/DebugKitLog.php
====

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