JVN/CVE Demo: Jvninfos

JVN Info.

Id: 4652
Name: JVNDB-2016-005425
Title: Linux Kernel の include/net/tcp.h の tcp_check_send_head 関数におけるサービス運用妨害 (DoS) の脆弱性
Summary: Linux Kernel の include/net/tcp.h の tcp_check_send_head 関数は、データコピーの失敗後、特定の SACK 状態を適切に維持しないため、サービス運用妨害 (tcp_xmit_retransmit_queue の解放済みメモリの使用 (use-after-free) およびシステムクラッシュ) 状態にされる脆弱性が存在します。
Nvdinfo: CVE-2016-6828
Cvssv2: 4.9
Jvnurl: http://jvndb.jvn.jp/ja/contents/2016/JVNDB-2016-005425.html
Published Date: 2016-09-24
Registered Date: 2016-10-20
Last Updated Date: 2016-10-20

Actions

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

Cake Params
- plugin(null)
- controllerjvninfos
- actionview
- named(empty)
- pass(array)
  04652
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 3.67 MB

Message	Memory use
Component initialization	1.38 MB
Controller action start	1.48 MB
Controller render start	2.34 MB
View render complete	2.68 MB

Timers

Total Request Time: 70 (ms)

Message	Time in ms	Graph
Core Processing (Derived from $_SERVER["REQUEST_TIME"])	3.85
Event: Controller.initialize	0.02
Event: Controller.startup	0.09
Controller action	55.79
Event: Controller.beforeRender	3.98
» Processing toolbar data	3.90
Rendering View	2.20
» Event: View.beforeRender	0.02
» Rendering APP/View/Jvninfos/view.ctp	1.24
» Event: View.afterRender	0.02
» Event: View.beforeLayout	0.02
» Rendering APP/View/Layouts/default.ctp	0.54
» » Rendering CORE/Cake/View/Elements/sql_dump.ctp	0.10
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)
  id4652
  nameJVNDB-2016-005425
  titleLinux Kernel の include/net/tcp.h の tcp_check_send_head 関数におけるサービス運用妨害 (DoS) の脆弱性
  summaryLinux Kernel の include/net/tcp.h の tcp_check_send_head 関数は、データコピーの失敗後、特定の SACK 状態を適切に維持しないため、サービス運用妨害 (tcp_xmit_retransmit_queue の解放済みメモリの使用 (use-after-free) およびシステムクラッシュ) 状態にされる脆弱性が存在します。
  cveinfo_nameCVE-2016-6828
  cveinfo_id93335
  nvdinfo_nameCVE-2016-6828
  nvdinfo_id21466
  cvssv24.9
  cvssv35.5
  jvnurlhttp://jvndb.jvn.jp/ja/contents/2016/JVNDB-2016-005425.html
  published_date2016-09-24
  registered_date2016-10-20
  last_updated_date2016-10-20
  deleted(null)
  created0000-00-00 00:00:00
  modified(null)
  Cveinfo(array)
  id93335
  nameCVE-2016-6515
  statusCandidate
  descriptionThe auth_password function in auth-passwd.c in sshd in OpenSSH before 7.3 does not limit password lengths for password authentication, which allows remote attackers to cause a denial of service (crypt CPU consumption) via a long string.
  phaseAssigned (20160801)
  votesNone (candidate not yet proposed)
  comments(null)
  deleted(null)
  created0000-00-00 00:00:00
  modified0000-00-00 00:00:00
  Nvdinfo(array)
  id21466
  nameCVE-2016-6828
  descriptionThe tcp_check_send_head function in include/net/tcp.h in the Linux kernel before 4.7.5 does not properly maintain certain SACK state after a failed data copy, which allows local users to cause a denial of service (tcp_xmit_retransmit_queue use-after-free and system crash) via a crafted SACK option.
  reject(null)
  CVSS_version2
  CVSS_score4.9
  severityMedium
  CVSS_base_score4.9
  CVSS_impact_subscore6.9
  CVSS_exploit_subscore3.9
  nvd_xml_version(null)
  CVSS_vector(AV:L/AC:L/Au:N/C:N/I:N/A:C)
  sourcecve
  pub_date2017-01-19
  published2016-10-16
  modified_date2017-01-02
  typeCVE
  seq2016-6828
  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/4652
Query String
Request Method	GET
Server Protocol	HTTP/1.1
Gateway Interface	CGI/1.1
Redirect Url	/jvn/app/webroot/jvninfos/view/4652
Remote Port	10291
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	18.116.43.130
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	18.116.43.130
Mm Country Code	US
Mmdb Info	result found
Mmdb Addr	18.116.43.130
Unique Id	aBDjaH752NOfhu3Y21jl7wAAAdg
Redirect Status	200
Redirect Gem Home	/usr/local/rvm/gems/ruby-2.3.0
Redirect X Dostranslated Ip	18.116.43.130
Redirect Mm Country Code	US
Redirect Mmdb Info	result found
Redirect Mmdb Addr	18.116.43.130
Redirect Unique Id	aBDjaH752NOfhu3Y21jl7wAAAdg
Redirect Redirect Status	200
Redirect Redirect Gem Home	/usr/local/rvm/gems/ruby-2.3.0
Redirect Redirect X Dostranslated Ip	18.116.43.130
Redirect Redirect Mm Country Code	US
Redirect Redirect Mmdb Info	result found
Redirect Redirect Mmdb Addr	18.116.43.130
Redirect Redirect Unique Id	aBDjaH752NOfhu3Y21jl7wAAAdg
Fcgi Role	RESPONDER
Php Self	/jvn/app/webroot/index.php
Request Time Float	1745937256.3648
Request Time	1745937256

====

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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  1CORE/Cache/Engine/FileEngine.php
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  Routing(array)
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  5CORE/Utility/ClassRegistry.php
  View(array)
  0CORE/View/HelperCollection.php
- app(array)
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  Controller(array)
  0APP/Controller/JvninfosController.php
  1APP/Controller/AppController.php
  Model(array)
  0APP/Model/Jvninfo.php
  1APP/Model/AppModel.php
  2APP/Model/Cveinfo.php
  3APP/Model/Nvdinfo.php
  4APP/Model/Nessuslog.php
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  0APP/webroot/index.php
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  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
====

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