verify_certificate_identity in the OpenSSL extension in Ruby before 2.0.0 patchlevel 645, 2.1.x before 2.1.6, and 2.2.x before 2.2.2 does not properly validate hostnames, which allows remote attackers to spoof servers via vectors related to (1) multiple wildcards, (1) wildcards in IDNA names, (3) case sensitivity, and (4) non-ASCII characters.

It was discovered that Ruby DL::dlopen incorrectly handled opening libraries. An attacker could possibly use this issue to open libraries with tainted names. This issue only applied to Ubuntu 14.04 LTS.
(CVE-2009-5147)

Tony Arcieri, Jeffrey Walton, and Steffan Ullrich discovered that the Ruby OpenSSL extension incorrectly handled hostname wildcard matching.
This issue only applied to Ubuntu 14.04 LTS. (CVE-2015-1855)

Christian Hofstaedtler discovered that Ruby Fiddle::Handle incorrectly handled certain crafted strings. An attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. This issue only applied to Ubuntu 14.04 LTS. (CVE-2015-7551)

It was discovered that Ruby Net::SMTP incorrectly handled CRLF sequences. A remote attacker could possibly use this issue to inject SMTP commands. (CVE-2015-9096)

Marcin Noga discovered that Ruby incorrectly handled certain arguments in a TclTkIp class method. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 14.04 LTS.
(CVE-2016-2337)

It was discovered that Ruby Fiddle::Function.new incorrectly handled certain arguments. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 14.04 LTS.
(CVE-2016-2339)

It was discovered that Ruby incorrectly handled the initialization vector (IV) in GCM mode. An attacker could possibly use this issue to bypass encryption. (CVE-2016-7798).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This ruby2.1 update to version 2.1.9 fixes the following issues :

Security issues fixed :

  - CVE-2016-2339: heap overflow vulnerability in the     Fiddle::Function.new'initialize' (bsc#1018808)

  - CVE-2015-7551: Unsafe tainted string usage in Fiddle and     DL (bsc#959495)

  - CVE-2015-3900: hostname validation does not work when     fetching gems or making API requests (bsc#936032)

  - CVE-2015-1855: Ruby'a OpenSSL extension suffers a     vulnerability through overly permissive matching of     hostnames (bsc#926974)

  - CVE-2014-4975: off-by-one stack-based buffer overflow in     the encodes() function (bsc#887877)

Bugfixes :

  - SUSEconnect doesn't handle domain wildcards in no_proxy     environment variable properly (bsc#1014863)

  - Segmentation fault after pack & ioctl & unpack     (bsc#909695)

  - Ruby:HTTP Header injection in 'net/http' (bsc#986630)

ChangeLog :

- http://svn.ruby-lang.org/repos/ruby/tags/v2_1_9/ChangeLog

This update was imported from the SUSE:SLE-12:Update update project.

This ruby2.1 update to version 2.1.9 fixes the following issues:
Security issues fixed :

  - CVE-2016-2339: heap overflow vulnerability in the     Fiddle::Function.new'initialize' (bsc#1018808)

  - CVE-2015-7551: Unsafe tainted string usage in Fiddle and     DL (bsc#959495)

  - CVE-2015-3900: hostname validation does not work when     fetching gems or making API requests (bsc#936032)

  - CVE-2015-1855: Ruby'a OpenSSL extension suffers a     vulnerability through overly permissive matching of     hostnames (bsc#926974)

  - CVE-2014-4975: off-by-one stack-based buffer overflow in     the encodes() function (bsc#887877) Bugfixes :

  - SUSEconnect doesn't handle domain wildcards in no_proxy     environment variable properly (bsc#1014863)

  - Segmentation fault after pack & ioctl & unpack     (bsc#909695)

  - Ruby:HTTP Header injection in 'net/http' (bsc#986630)     ChangeLog :

- http://svn.ruby-lang.org/repos/ruby/tags/v2_1_9/ChangeLog

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for ruby fixes the following issues: Secuirty issues fixed :

  - CVE-2015-1855: Ruby OpenSSL Hostname Verification     (bsc#926974)

  - CVE-2015-7551: Unsafe tainted string usage in Fiddle and     DL (bsc#959495) Bugfixes :

  - fix small mistake in the backport for (bsc#986630)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote host is running a version of Mac OS X that is 10.6.8 or later but prior to 10.11 and is affected by multiple vulnerabilities in the following components : 

 - Address Book 
 - AirScan 
 - apache_mod_php 
 - Apple Online Store Kit 
 - AppleEvents 
 - Audio 
 - bash 
 - Certificate Trust Policy 
 - CFNetwork Cookies - CFNetwork FTPProtocol 
 - CFNetwork HTTPProtocol 
 - CFNetwork Proxies 
 - CFNetwork SSL 
 - CoreCrypto 
 - CoreText 
 - Dev Tools 
 - Disk Images 
 - dyld 
 - EFI 
 - Finder 
 - Game Center 
 - Heimdal 
 - ICU 
 - Install Framework Legacy 
 - Intel Graphics Driver 
 - IOAudioFamily 
 - IOGraphics 
 - IOHIDFamily 
 - IOStorageFamily 
 - Kernel 
 - libc 
 - libpthread 
 - libxpc 
 - Login Window 
 - lukemftpd 
 - Mail 
 - Multipeer Connectivity 
 - NetworkExtension 
 - Notes 
 - OpenSSH 
 - OpenSSL 
 - procmail 
 - remote_cmds 
 - removefile 
 - Ruby 
 - Safari 
 - Safari Downloads 
 - Safari Extensions 
 - Safari Safe Browsing 
 - Security 
 - SMB 
 - SQLite 
 - Telephony 
 - Terminal 
 - tidy 
 - Time Machine 
 - WebKit 
 - WebKit CSS 
 - WebKit JavaScript Bindings 
 - WebKit Page Loading 
 - WebKit Plug-ins

The remote host is running a version of Mac OS X that is 10.6.8 or later but prior to 10.11. It is, therefore, affected by multiple vulnerabilities in the following components :

  - Address Book
  - AirScan
  - apache_mod_php
  - Apple Online Store Kit
  - AppleEvents
  - Audio
  - bash
  - Certificate Trust Policy
  - CFNetwork Cookies
  - CFNetwork FTPProtocol
  - CFNetwork HTTPProtocol
  - CFNetwork Proxies
  - CFNetwork SSL
  - CoreCrypto
  - CoreText
  - Dev Tools
  - Disk Images
  - dyld
  - EFI
  - Finder
  - Game Center
  - Heimdal
  - ICU
  - Install Framework Legacy
  - Intel Graphics Driver
  - IOAudioFamily
  - IOGraphics
  - IOHIDFamily
  - IOStorageFamily
  - Kernel
  - libc
  - libpthread
  - libxpc
  - Login Window
  - lukemftpd
  - Mail
  - Multipeer Connectivity
  - NetworkExtension
  - Notes
  - OpenSSH
  - OpenSSL
  - procmail
  - remote_cmds
  - removefile
  - Ruby
  - Safari
  - Safari Downloads
  - Safari Extensions
  - Safari Safe Browsing
  - Security
  - SMB
  - SQLite
  - Telephony
  - Terminal
  - tidy
  - Time Machine
  - WebKit
  - WebKit CSS
  - WebKit JavaScript Bindings
  - WebKit Page Loading
  - WebKit Plug-ins

Note that successful exploitation of the most serious issues can result in arbitrary code execution.

CVE-2011-0188 The VpMemAlloc function in bigdecimal.c in the BigDecimal class in Ruby 1.9.2-p136 and earlier, as used on Apple Mac OS X before 10.6.7 and other platforms, does not properly allocate memory, which allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving creation of a large BigDecimal value within a 64-bit process, related to an 'integer truncation issue.'

CVE-2011-2705 use upstream SVN r32050 to modify PRNG state to prevent random number sequence repeatation at forked child process which has same pid. Reported by Eric Wong.

CVE-2012-4522 The rb_get_path_check function in file.c in Ruby 1.9.3 before patchlevel 286 and Ruby 2.0.0 before r37163 allows context-dependent attackers to create files in unexpected locations or with unexpected names via a NUL byte in a file path.

CVE-2013-0256 darkfish.js in RDoc 2.3.0 through 3.12 and 4.x before 4.0.0.preview2.1, as used in Ruby, does not properly generate documents, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted URL.

CVE-2013-2065 (1) DL and (2) Fiddle in Ruby 1.9 before 1.9.3 patchlevel 426, and 2.0 before 2.0.0 patchlevel 195, do not perform taint checking for native functions, which allows context-dependent attackers to bypass intended $SAFE level restrictions.

CVE-2015-1855 OpenSSL extension hostname matching implementation violates RFC 6125

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

As discussed in an upstream announcement, Ruby's OpenSSL extension suffers a vulnerability through overly permissive matching of hostnames, which can lead to similar bugs such as CVE-2014-1492 .

It was discovered that the Ruby OpenSSL extension, part of the interpreter for the Ruby language, did not properly implement hostname matching, in violation of RFC 6125. This could allow remote attackers to perform a man-in-the-middle attack via crafted SSL certificates.

For the oldoldstable distribution (squeeze), this problem has been fixed in version 1.8.7.302-2squeeze4.

For the oldstable distribution (wheezy), this problem was fixed in version 1.8.7.358-7.1+deb7u3.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Updated ruby packages fix security vulnerability :

Ruby OpenSSL hostname matching implementation violates RFC 6125 (CVE-2015-1855).

The ruby packages for MBS2 has been updated to version 2.0.0-p645, which fixes this issue.

It was discovered that the Ruby OpenSSL extension, part of the interpreter for the Ruby language, did not properly implement hostname matching, in violation of RFC 6125. This could allow remote attackers to perform a man-in-the-middle attack via crafted SSL certificates.

Fixes CVE-2015-1855 ruby: OpenSSL extension hostname matching implementation violates RFC 6125

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Ruby Developers report :

After reviewing RFC 6125 and RFC 5280, we found multiple violations of matching hostnames and particularly wildcard certificates.

Ruby's OpenSSL extension will now provide a string-based matching algorithm which follows more strict behavior, as recommended by these RFCs. In particular, matching of more than one wildcard per subject/SAN is no-longer allowed. As well, comparison of these values are now case-insensitive.

ID	Name	Product	Family	Severity
101974	Ubuntu 14.04 LTS / 16.04 LTS : Ruby vulnerabilities (USN-3365-1)	Nessus	Ubuntu Local Security Checks	critical
99753	openSUSE Security Update : ruby2.1 (openSUSE-2017-527)	Nessus	SuSE Local Security Checks	critical
99578	SUSE SLED12 / SLES12 Security Update : ruby2.1 (SUSE-SU-2017:1067-1)	Nessus	SuSE Local Security Checks	critical
99242	SUSE SLES11 Security Update : ruby (SUSE-SU-2017:0948-1)	Nessus	SuSE Local Security Checks	high
8982	Mac OS X < 10.11 Multiple Vulnerabilities	Nessus Network Monitor	Operating System Detection	critical
86270	Mac OS X < 10.11 Multiple Vulnerabilities (GHOST)	Nessus	MacOS X Local Security Checks	critical
83907	Debian DLA-235-1 : ruby1.9.1 security update	Nessus	Debian Local Security Checks	medium
83885	Amazon Linux AMI : ruby22 (ALAS-2015-533)	Nessus	Amazon Linux Local Security Checks	medium
83884	Amazon Linux AMI : ruby21 (ALAS-2015-532)	Nessus	Amazon Linux Local Security Checks	medium
83883	Amazon Linux AMI : ruby20 (ALAS-2015-531)	Nessus	Amazon Linux Local Security Checks	medium
83882	Amazon Linux AMI : ruby19 (ALAS-2015-530)	Nessus	Amazon Linux Local Security Checks	medium
83881	Amazon Linux AMI : ruby18 (ALAS-2015-529)	Nessus	Amazon Linux Local Security Checks	medium
83531	Debian DLA-224-1 : ruby1.8 security update	Nessus	Debian Local Security Checks	medium
83248	Mandriva Linux Security Advisory : ruby (MDVSA-2015:224)	Nessus	Mandriva Local Security Checks	high
83233	Debian DSA-3247-1 : ruby2.1 - security update	Nessus	Debian Local Security Checks	medium
83232	Debian DSA-3246-1 : ruby1.9.1 - security update	Nessus	Debian Local Security Checks	medium
83231	Debian DSA-3245-1 : ruby1.8 - security update	Nessus	Debian Local Security Checks	medium
83125	Fedora 21 : ruby-2.1.6-27.fc21 (2015-6377)	Nessus	Fedora Local Security Checks	medium
83043	Fedora 22 : ruby-2.2.2-11.fc22 (2015-6238)	Nessus	Fedora Local Security Checks	medium
82753	FreeBSD : Ruby -- OpenSSL Hostname Verification Vulnerability (d4379f59-3e9b-49eb-933b-61de4d0b0fdb)	Nessus	FreeBSD Local Security Checks	medium

Detections

Analytics

CVE-2015-1855

medium

Tenable Plugins

critical

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critical

critical

medium

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