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Vulnerability Alert

OpenSSL DTLS Fragment Processing Buffer Overflow Vulnerability

 
Threat Type:CWE-119: Buffer Errors
IntelliShield ID:34546
Version:9
First Published:2014 June 05 14:39 GMT
Last Published:2014 September 19 12:56 GMT
Port: Not available
CVE:CVE-2014-0195
BugTraq ID:67900
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Moderate Damage
CVSS Base:9.3 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:6.9
 
 
Version Summary:Apple has released a security advisory and updated software to address the OpenSSL DTLS fragment processing buffer overflow vulnerability.
 
 
Description
A vulnerability in OpenSSL could allow an unauthenticated, remote attacker to execute arbitrary code.

The vulnerability is due to improper handling of Datagram Transport Layer Security (DTLS) fragments by a system running the affected application. An unauthenticated, remote attacker could exploit this vulnerability by sending crafted DTLS fragments to a targeted system. A successful exploit could cause a buffer overrun condition that the attacker could use to execute arbitrary code on the system. If OpenSSL is running with elevated privileges on the system, exploitation could result in a complete system compromise.

OpenSSL has confirmed the vulnerability and released software updates.
 
Warning Indicators
The following OpenSSL versions are affected:
  • OpenSSL versions prior to 0.9.8za
  • OpenSSL versions prior to 1.0.0m
  • OpenSSL versions prior to 1.0.1h
 
IntelliShield Analysis
To exploit this vulnerability, an attacker would need to send crafted DTLS fragments to the targeted device. Depending on where the targeted system resides in an environment, an attacker may need to bypass firewall restrictions or other protection measures, which may reduce the likelihood of a successful exploit.
 
Vendor Announcements
OpenSSL.org has released a security advisory at the following link: CVE-2014-0195

Apple has released a security advisory at the following link: HT6443

BlackBerry has released a security advisory at the following link: KB36051


Blue Coat has released an advisory at the following link: SA80

FreeBSD has released a security advisory at the following link: FreeBSD-SA-14:14.openssl

HP has released security bulletins c04336637, c04337774 and c04363613 at the following links: HPSBUX03046 SSRT101590, HPSBOV03047 and HPSBMU03065 SSRT101630

Oracle has released a security advisory at the following link: Buffer Errors vulnerability

Red Hat has released an official CVE statement and a security advisory for bug 1103598 at the following links: CVE-2014-0195, RHSA-2014:0625, RHSA-2014:0628, and RHSA-2014:0679
 
Impact
An unauthenticated, remote attacker could exploit this vulnerability to execute arbitrary code on a targeted system. If the affected application is running with elevated privileges, the attacker could execute arbitrary code with these privileges, which could result in a complete system compromise.
 
Technical Information
The vulnerability is due to improper handling of crafted DTLS fragments by a system running an affected version of OpenSSL.

An unauthenticated, remote attacker could exploit this vulnerability by sending DTLS fragments to a targeted system. A successful exploit could cause a buffer overrun condition that the attacker could use to execute arbitrary code on the system. If OpenSSL is running with elevated privileges on the system, exploitation could result in a complete system compromise.
 
Safeguards
Administrators are advised to apply the appropriate updates.

Administrators are advised to allow only trusted users to have network access.

Administrators can help protect affected systems from external attacks by using a solid firewall strategy.

Administrators are advised to monitor affected systems.
 
Patches/Software
OpenSSL.org has released software updates at the following link: OpenSSL

Apple has released updated software at the following links:
Mac OS X and Mac OS X Server 10.7.5
Security Update 2014-004 (Lion)
Security Update 2014-004 Server (Lion)
Mac OS X 10.8.5
Security Update 2014-004 (Mountain Lion)
Mac OS X 10.9.5
OS X Mavericks 10.9.5 Update
OS X Mavericks 10.9.5 Update (Combo)

BlackBerry customers are advised to follow the resolution steps mentioned in the vendor advisory to mitigate this vulnerability.

FreeBSD has released patches and instructions for installing the patches in their security advisory, which is linked from the "Vendor Announcements" section of this alert.

HP has released updated software at the following links: Oracle has released a patch for registered users at the following link: Solaris 11.1.20.5.0

Red Hat has released updated software for registered subscribers at the following link: Red Hat Network. Red Hat packages can be updated on Red Hat Enterprise Linux versions 5 and later using the yum tool.
 
Alert History
 

Version 8, July 9, 2014, 9:03 AM: HP has released an additional security bulletin and updated software to address the OpenSSL DTLS fragment processing buffer overflow vulnerability.

Version 7, June 25, 2014, 9:05 AM: BlackBerry has released a security advisory and updated software to address the OpenSSL DTLS fragment processing buffer overflow vulnerability.

Version 6, June 24, 2014, 9:34 AM: Oracle has released a security advisory and patch to address the OpenSSL DTLS fragment processing buffer overflow vulnerability.

Version 5, June 19, 2014, 8:31 AM: HP has released an additional security bulletin and updated software to address the OpenSSL DTLS fragment processing buffer overflow vulnerability.

Version 4, June 13, 2014, 9:40 AM: HP has released a security bulletin and updated software to address the OpenSSL DTLS fragment processing buffer overflow vulnerability.

Version 3, June 11, 2014, 8:56 AM: Red Hat has released an additional security advisory and software updates to address the OpenSSL DTLS fragment processing buffer overflow vulnerability.

Version 2, June 9, 2014, 8:06 AM: Blue Coat has released updated packages to address the OpenSSL DTLS fragment processing buffer overflow vulnerability.

Version 1, June 5, 2014, 10:39 AM: OpenSSL contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system. Updates are available.


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

Primary Products:
OpenSSLopenssl 0.9.8 Base | 0.9.8a Base | 0.9.8b Base | 0.9.8c Base | 0.9.8d Base | 0.9.8e Base | 0.9.8f Base | 0.9.8g Base | 0.9.8h Base | 0.9.8i Base | 0.9.8j Base | 0.9.8k Base | 0.9.8l Base | 0.9.8m Base | 0.9.8o Base | 0.9.8p Base | 0.9.8q Base | 0.9.8r Base | 0.9.8s Base | 0.9.8t Base | 0.9.8u Base | 0.9.8v Base | 0.9.8w Base | 0.9.8x Base | 1.0.0 Base | 1.0.0a Base | 1.0.0b Base | 1.0.0c Base | 1.0.0d Base | 1.0.0e Base | 1.0.0f Base | 1.0.0g Base | 1.0.0h Base | 1.0.0i Base | 1.0.0j Base | 1.0.0k Base | 1.0.1 Base | 1.0.1a Base | 1.0.1b Base | 1.0.1c Base | 1.0.1d Base | 1.0.1e Base | 1.0.1f Base | 1.0.1g Base

Associated Products:
AppleMac OS X 10.7.5 Base | 10.8.5 Base | 10.9 Base | 10.9.1 Base | 10.9.2 Base | 10.9.3 Base | 10.9.4 Base
AppleMac OS X Server 10.7.5 Base
BlackBerryBlackberry Enterprise Service 10.1 Base, .1, .2 | 10.2 Base
BlackBerryBlackBerry OS 10 Base
Blue Coat Systems, Inc.Malware Analysis Appliance 1.1 Base, .1
Blue Coat Systems, Inc.IntelligenceCenter 3.2 Base, .1
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 | 8.3 Base | 8.4 Base | 9.0 Base | 9.1 Base | 9.2 Base | 9.3 Base | 10.0 Base
HPHP SSL for OpenVMS 1.4 Base, -467, -471
HPHP-UX 11.11/11i Base | 11.23 Base | 11.31 Base
HPOperations Analytics 2.0 Base | 2.1 Base
Oracle CorporationSolaris 11.1 Base
Red Hat, Inc.Red Hat Enterprise Linux 7 Base
Red Hat, Inc.Red Hat Enterprise Linux Server AUS 6.5 x86_64
Red Hat, Inc.Red Hat Enterprise Linux Desktop 6 IA-32, x86_64
Red Hat, Inc.Red Hat Enterprise Linux HPC Node 6 x86_64
Red Hat, Inc.Red Hat Enterprise Linux Server 6 IA-32, PPC, PPC 64, s390, s390x, x86_64
Red Hat, Inc.Red Hat Enterprise Linux Server EUS 6.5.z IA-32, PPC, PPC64, s390, s390x, x86_64
Red Hat, Inc.Red Hat Enterprise Linux Workstation 6 IA-32, x86_64
Red Hat, Inc.Red Hat Storage Server 2.1 x86_64




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