JVN/CVE Demo: Cvereves

CVE Reference

Id: 792210
CVE No.: CVE-2016-6197
Reference: MLIST:[oss-security] 20160711 Re: cvs request: local DoS using rename syscall on overlayfs on top of xfs to crash the kernel - Linux kernel

Actions

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

Cake Params
- plugin(null)
- controllercvereves
- actionview
- named(empty)
- pass(array)
  0792210
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 3.55 MB

Message	Memory use
Component initialization	1.39 MB
Controller action start	1.50 MB
Controller render start	2.13 MB
View render complete	2.52 MB

Timers

Total Request Time: 19 (ms)

Message	Time in ms	Graph
Core Processing (Derived from $_SERVER["REQUEST_TIME"])	3.90
Event: Controller.initialize	0.02
Event: Controller.startup	0.09
Controller action	3.70
Event: Controller.beforeRender	4.52
» Processing toolbar data	4.44
Rendering View	2.63
» Event: View.beforeRender	0.02
» Rendering APP/View/Cvereves/view.ctp	1.72
» Event: View.afterRender	0.02
» Event: View.beforeLayout	0.02
» Rendering APP/View/Layouts/default.ctp	0.50
» » Rendering CORE/Cake/View/Elements/sql_dump.ctp	0.07
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
- cveref(array)
  Cveref(array)
  id792210
  cveinfo_id93017
  name(null)
  cveinfo_nameCVE-2016-6197
  referenceMLIST:[oss-security] 20160711 Re: cvs request: local DoS using rename syscall on overlayfs on top of xfs to crash the kernel - Linux kernel
  deleted(null)
  created0000-00-00 00:00:00
  modified0000-00-00 00:00:00
  Cveinfo(array)
  id93017
  nameCVE-2016-6197
  statusCandidate
  descriptionfs/overlayfs/dir.c in the OverlayFS filesystem implementation in the Linux kernel before 4.6 does not properly verify the upper dentry before proceeding with unlink and rename system-call processing, which allows local users to cause a denial of service (system crash) via a rename system call that specifies a self-hardlink.
  phaseAssigned (20160711)
  votesNone (candidate not yet proposed)
  comments(null)
  deleted(null)
  created0000-00-00 00:00:00
  modified0000-00-00 00:00:00
- $request->data(empty)
- $this->validationErrors(array)
  Cveref(empty)
  Cveinfo(empty)
- Loaded Helpers(array)
  0Number
  1SimpleGraph
  2DebugTimer
  3Toolbar
  4Html
  5Text
  6Form
  7Session
  8HtmlToolbar
====

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
Script Name	/jvn/app/webroot/index.php
Request Uri	/jvn/cvereves/view/792210
Query String
Request Method	GET
Server Protocol	HTTP/1.1
Gateway Interface	CGI/1.1
Redirect Url	/jvn/app/webroot/cvereves/view/792210
Remote Port	44700
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	216.73.216.1
Server Port	80
Server Addr	160.251.151.205
Server Name	inogo77.s500.xrea.com
Server Software	Apache
Server Signature
Http Connection	close
Http Cache Control	max-age=259200
Http X Forwarded For	10.1.145.128
Http Via	1.1 squid-proxy-5b5d847c96-56z77 (squid/6.13)
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
Suspectharddos	1
Suspectdos	1
X Dostranslated Ip	216.73.216.1
Mm Country Code	US
Mmdb Info	result found
Mmdb Addr	216.73.216.1
Unique Id	aPJF3ofhuddlvt_JVucUswAAAiQ
Redirect Status	200
Redirect Gem Home	/usr/local/rvm/gems/ruby-2.3.0
Redirect Suspectharddos	1
Redirect Suspectdos	1
Redirect X Dostranslated Ip	216.73.216.1
Redirect Mm Country Code	US
Redirect Mmdb Info	result found
Redirect Mmdb Addr	216.73.216.1
Redirect Unique Id	aPJF3ofhuddlvt_JVucUswAAAiQ
Redirect Redirect Status	200
Redirect Redirect Gem Home	/usr/local/rvm/gems/ruby-2.3.0
Redirect Redirect Suspectharddos	1
Redirect Redirect Suspectdos	1
Redirect Redirect X Dostranslated Ip	216.73.216.1
Redirect Redirect Mm Country Code	US
Redirect Redirect Mmdb Info	result found
Redirect Redirect Mmdb Addr	216.73.216.1
Redirect Redirect Unique Id	aPJF3ofhuddlvt_JVucUswAAAiQ
Fcgi Role	RESPONDER
Php Self	/jvn/app/webroot/index.php
Request Time Float	1760708062.1063
Request Time	1760708062

====

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/
Included Files
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  Routing(array)
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  6CORE/Routing/Route/PluginShortRoute.php
  Utility(array)
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  View(array)
  0CORE/View/HelperCollection.php
- app(array)
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  Controller(array)
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  0APP/Model/Cveref.php
  1APP/Model/AppModel.php
  2APP/Model/Cveinfo.php
  Other(array)
  0APP/webroot/index.php
- plugins(array)
  DebugKit(array)
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  Other(array)
  0DebugKit/Lib/DebugMemory.php
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  4DebugKit/Lib/Panel/RequestPanel.php
  5DebugKit/Lib/Panel/SqlLogPanel.php
  6DebugKit/Lib/Panel/TimerPanel.php
  7DebugKit/Lib/Panel/LogPanel.php
  8DebugKit/Lib/Panel/VariablesPanel.php
  9DebugKit/Lib/Panel/EnvironmentPanel.php
  10DebugKit/Lib/Panel/IncludePanel.php
  11DebugKit/Lib/DebugTimer.php
  Log(array)
  0DebugKit/Lib/Log/Engine/DebugKitLog.php
====

CVE Reference

Actions

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