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ubuntucveUbuntu.comUB:CVE-2016-8743
HistoryDec 22, 2016 - 12:00 a.m.

CVE-2016-8743

2016-12-2200:00:00
ubuntu.com
ubuntu.com
35

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

0.003 Low

EPSS

Percentile

67.5%

JSON

Apache HTTP Server, in all releases prior to 2.2.32 and 2.4.25, was liberal
in the whitespace accepted from requests and sent in response lines and
headers. Accepting these different behaviors represented a security concern
when httpd participates in any chain of proxies or interacts with back-end
application servers, either through mod_proxy or using conventional CGI
mechanisms, and may result in request smuggling, response splitting and
cache pollution.

Bugs

Notes

Author Note
ratliff Notes from Debian “The fix is not fully backwards compatible so upstream have created a new option to control this behaviour. Affects: 2.2.0 to 2.4.23.”
mdeslaur This fix no longer allows underscores in host names. Debian added a patch to restore the behaviour: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=851357 http://mail-archives.apache.org/mod_mbox/httpd-dev/201702.mbox/<20170202125319.GA15948%40redhat.com> The new configuration option doesn’t entirely preserve backwards compatibility: https://bz.apache.org/bugzilla/show_bug.cgi?id=60783
OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarchapache2< 2.4.7-1ubuntu4.15UNKNOWN
ubuntu16.04noarchapache2< 2.4.18-2ubuntu3.2UNKNOWN
ubuntu16.10noarchapache2< 2.4.18-2ubuntu4.1UNKNOWN

Related

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apple 6
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ibm
ibm
Security Bulletin: A security vulnerability has been identified in IBM HTTP Server shipped with IBM Rational ClearCase (CVE-2016-8743)
2018-07-10 08:34:12
Security Bulletin: Security vulnerability in IBM HTTP Server shipped with Cloud Orchestrator and Cloud Orchestrator Enterprise (CVE-2016-8743 )
2018-06-17 22:33:35
Security Bulletin: A security vulnerability has been identified in IBM WebSphere Application Server shipped with IBM Tivoli Security Policy Manager (CVE-2016-8743)
2018-06-16 21:50:25
nessus
nessus
IBM HTTP Server 7.0.0.0 < 7.0.0.43 / 8.0.0.0 < 8.0.0.14 / 8.5.0.0 < 8.5.5.12 / 9.0.0.0 < 9.0.0.3 Response Splitting (289001)
2021-01-06 00:00:00
CentOS 6 : httpd (CESA-2017:1721)
2017-07-13 00:00:00
Oracle Linux 6 : httpd (ELSA-2017-1721)
2017-07-12 00:00:00
prion
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Design/Logic Flaw
2017-07-27 21:29:00
f5
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Apache vulnerability CVE-2016-8743
2017-02-03 23:10:00
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Apache Httpd < 2.2.32 : Apache HTTP Request Parsing Whitespace Defects
2016-02-10 00:00:00
Apache Httpd < 2.4.25 : Apache HTTP Request Parsing Whitespace Defects
2016-02-10 00:00:00
amazon
amazon
Medium: httpd
2017-06-22 19:25:00
Medium: httpd24
2017-01-19 16:30:00
Medium: httpd24
2017-08-03 18:53:00
debian
debian
[SECURITY] [DSA 3796-2] sitesummary regression update
2017-03-20 17:05:00
[SECURITY] DLA-862-1: sitesummary regression update
2017-03-19 09:43:20
[SECURITY] [DSA 3796-2] sitesummary regression update
2017-03-20 17:05:00
osv
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apache2 - regression update
2017-07-29 00:00:00
CVE-2016-8743
2017-07-27 21:29:00
apache2 - security update
2017-02-28 00:00:00
redhat
redhat
(RHSA-2017:1721) Moderate: httpd security and bug fix update
2017-07-11 16:53:41
(RHSA-2017:0906) Moderate: httpd security and bug fix update
2017-04-12 10:02:46
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2017-04-26 09:54:23
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CVE-2016-8743
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2017-07-27 21:29:00
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httpd, mod_ssl security update
2017-07-12 17:44:05
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2017-04-13 10:59:52
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The best Burp plugin I’ve ever seen
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CVE-2016-8743
2016-12-21 15:18:32
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Debian LTS: Security Advisory for sitesummary (DLA-862-1)
2018-01-12 00:00:00
Apache HTTP Server 'Whitespace Defects' Multiple Vulnerabilities
2017-10-16 00:00:00
CentOS Update for httpd CESA-2017:1721 centos6
2017-07-14 00:00:00
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Security update for apache2 (moderate)
2018-09-25 15:13:20
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httpd security and bug fix update
2017-07-11 00:00:00
httpd security and bug fix update
2017-04-12 00:00:00
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[SECURITY] Fedora 24 Update: httpd-2.4.25-1.fc24
2016-12-25 03:26:41
[SECURITY] Fedora 25 Update: httpd-2.4.25-1.fc25
2016-12-25 02:14:19
ubuntu
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Apache HTTP Server vulnerabilities
2017-05-09 00:00:00
Apache HTTP Server vulnerabilities
2017-07-31 00:00:00
slackware
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[slackware-security] httpd
2016-12-24 01:35:08
freebsd
freebsd
Apache httpd -- several vulnerabilities
2016-12-20 00:00:00
gentoo
gentoo
Apache: Multiple vulnerabilities
2017-01-15 00:00:00
hackerone
hackerone
Internet Bug Bounty: Apache HTTP Request Parsing Whitespace Defects
2017-06-29 17:41:22
Internet Bug Bounty: Multiple HTTP Smuggling reports
2019-07-17 22:47:10
mageia
mageia
Updated apache packages fix security vulnerability
2018-01-01 13:38:51
apple
apple
About the security content of macOS High Sierra 10.13
2017-09-25 00:00:00
About the security content of macOS High Sierra 10.13 - Apple Support
2020-02-06 07:51:09
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2017-08-29 02:52:03
oracle
oracle
Oracle Critical Patch Update Advisory - April 2017
2017-04-18 00:00:00

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

0.003 Low

EPSS

Percentile

67.5%

JSON
Related for UB:CVE-2016-8743
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