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Vulnerability Alert

OpenSSL DTLS Implementation Regression Error Remote Denial of Service Vulnerability

 
Threat Type:CWE-399: Resource Management Errors
IntelliShield ID:24974
Version:9
First Published:2012 January 19 16:51 GMT
Last Published:2013 June 06 15:36 GMT
Port: Not available
CVE:CVE-2012-0050
BugTraq ID:51563
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Mild Damage
CVSS Base:5.0 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:3.7
 
 
Version Summary:Apple has released a security advisory and updated software to address the OpenSSL DTLS implementation regression error remote denial of service vulnerability.
 
 
Description
OpenSSL contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the targeted system. The vulnerability is due to a regression error that was introduced through an update for a vulnerability in the Datagram Transport Layer Security (DTLS) protocol implementation of the affected software. An unauthenticated, remote attacker could exploit the vulnerability through an unspecified vector. Successful exploitation could allow the attacker to cause an unexpected termination of the application that uses the affected OpenSSL versions.

OpenSSL has confirmed the vulnerability and released software updates.
 
Warning Indicators
OpenSSL versions 1.0.0f and 0.9.8s are affected.
 
IntelliShield Analysis
The vulnerability is due to a regression error that was introduced through a fix for the vulnerability CVE-2011-4108.

The vulnerability is documented in IntelliShield Alert 24893.
 
Vendor Announcements
OpenSSL has released a security advisory at the following link: secadv_20120118 FreeBSD has released a VuXML document at the following link: OpenSSL -- DTLS Denial of Service

Apple has released a security advisory at the following link: HT5784


HP has released security bulletin c03169289 at the following link: HPSBUX02737 SSRT100747 and HPSBOV02793 SSRT100891

IBM has released a security advisory at the following link: CVE-2012-0050

Oracle has released a security advisory at the following link: CVE-2012-0050

VMware has released a security advisory at the following link: VMSA-2012-0013
 
Impact
An unauthenticated, remote attacker could exploit the vulnerability to cause an unexpected termination of the affected application, resulting in a DoS condition.
 
Technical Information
Technical details are not available.
 
Safeguards
Administrators are advised to apply the appropriate updates.

Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.

Administrators are advised to monitor affected systems.
 
Patches/Software
OpenSSL has released updated versions at the following links:

OpenSSL version 0.9.8t
OpenSSL version 1.0.0g

Apple has released updated software at the following links:
Mac OS X and Mac OS X Server 10.6.8
Security Update 2013-002 (Snow Leopard)
Security Update 2013-002 Server (Snow Leopard)

Mac OS X and Mac OS X Server 10.7.5
Security Update 2013-002 (Lion)
Security Update 2013-002 Server (Lion)

Mac OS X 10.8.4
OS X Mountain Lion Update 10.8.4
OS X Mountain Lion Update 10.8.4 (Combo)

FreeBSD releases ports collection updates at the following link: Ports Collection Index

HP has released updated software at the following links: CVE-2012-0050 and HP SSL for openVMS 1.4-467

IBM has released a fix for registered users at the following link: AIX

Oracle has released patches for registered users at the following link: Solaris 11 11/11 SRU 4a

VMware has released updated software at the following links:

ESX 4.1
ESX410-201208101-SG


ESXi 4.1

ESXi410-201208101-SG

ESXi 5.0
ESXi-5.0.0-20121201001

 
Alert History
 

Version 8, December 21, 2012, 7:48 PM: VMware has re-released a security advisory and updated software to address the OpenSSL DTLS implementation regression error remote denial of service vulnerability.

Version 7, September 5, 2012, 2:07 PM: VMware has released a security advisory and updated software to address the OpenSSL DTLS implementation regression error remote denial of service vulnerability.

Version 6, June 25, 2012, 10:36 AM: HP has released a security bulletin and updated software to address the OpenSSL DTLS implementation regression error remote denial of service vulnerability.

Version 5, April 5, 2012, 8:33 AM: Oracle has released a security advisory and patches to address the OpenSSL DTLS implementation regression error remote denial of service vulnerability.

Version 4, March 23, 2012, 3:50 PM: IBM has released a security advisory and fixes to address the OpenSSL DTLS implementation regression error remote denial of service vulnerability.

Version 3, January 26, 2012, 9:30 AM: HP has released a security bulletin and updated software to address the OpenSSL DTLS implementation regression error remote denial of service vulnerability.

Version 2, January 23, 2012, 5:18 PM: FreeBSD has released a VuXML document and updated ports collection to address the OpenSSL DTLS implementation regression error remote denial of service vulnerability.

Version 1, January 19, 2012, 11:51 AM: OpenSSL contains a vulnerability that could allow an unauthenticated, remote attacker to cause a DoS condition. Updates are available.


Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
OpenSSLopenssl 0.9.8s Base | 1.0.0f Base

Associated Products:
AppleMac OS X 10.6.8 Base | 10.7 Base | 10.7.1 Base | 10.7.2 Base | 10.7.3 Base | 10.7.4 Base | 10.7.5 Base | 10.8 Base | 10.8.1 Base | 10.8.2 Base | 10.8.3 Base
AppleMac OS X Server 10.6.8 Base | 10.7 Base | 10.7.1 Base | 10.7.2 Base | 10.7.3 Base | 10.7.4 Base | 10.7.5 Base
FreeBSD ProjectFreeBSD 6.3 Base | 6.4 Base | 7.0 Base | 7.1 Base | 7.2 Base | 7.3 Base | 7.4 Base | 8.0 Base | 8.1 Base | 8.2 Base | 9.0 Base
HPHP SSL for OpenVMS 1.4 Base
HPHP-UX 11.11/11i Base | 11.23 Base | 11.31 Base
IBMAIX 5.3 Base, .7.0, .7.1, .8, .9, .10, .11, .12 | 6.1 .0, .1, .2, .3, .4, .5, .6, .7 | 7.1 .0, .1
Oracle CorporationSolaris Express 11 2010.11
VMware, Inc.VMware ESX Server 3.5 Base, Update 1, Update 2, Update 3, Update 4 | 4.0 Base | 4.1 Base
VMware, Inc.VMware ESXi 3.5 Base, Update 1, Update 2, Update 3, Update 4 | 4.0 Base | 4.1 Base | 5.0 Base




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