OpenSSL TLS record denial of service

openssl-tls-record-dos (75525) The risk level is classified as MediumMedium Risk

Description:

OpenSSL is vulnerable to a denial of service, caused by an integer underflow error when handling CBC mode ciphersuites in TLS records. A remote attacker could send specially-crafted packets to cause the application to crash.

*CVSS:

Base Score: 5
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 3.7
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Upgrade to the latest version of OpenSSL (1.0.1c, 1.0.0j, or 0.9.8x or later), available from the OpenSSL Web site. See References.

For other distributions:
Apply the appropriate update for your system.

References:

  • Apple Web site: About the security content of OS X Mountain Lion v10.8.4 and Security Update 2013-002.
  • BalaBit Web site: syslog-ng.
  • CERT-FI: CERT-FI Advisory on OpenSSL.
  • IBM SECURITY ADVISORY: Multiple OpenSSL vulnerabilities.
  • IBM Security Bulletin 1620340: IBM Rational ClearCase update for security vulnerabilities in OpenSSL component.
  • IBM Security Bulletin 1625170: IBM Smart Analytics System 7600, 7700, and 7710 are affected by vulnerabilities in OpenSSL.
  • IBM Security Bulletin S1004262: IBM TS3310 Tape Library update for security vulnerabilities in OpenSSL (CVE-2012-2333).
  • IBM Security Bulletin S1004288: IBM TS2900 Tape Library update for security vulnerabilities in OpenSSL (CVE-2012-2333).
  • IBM Security Bulletin S1004316: IBM TS3400 Tape Library update for security vulnerabilities in OpenSSL (CVE-2012-2333).
  • OpenSSL Security Advisory [10 May 2012]: Invalid TLS/DTLS record attack (CVE-2012-2333).
  • BID-53476: OpenSSL DTLS CVE-2012-2333 Remote Denial of Service Vulnerability
  • CVE-2012-2333: Integer underflow in OpenSSL before 0.9.8x, 1.0.0 before 1.0.0j, and 1.0.1 before 1.0.1c, when TLS 1.1, TLS 1.2, or DTLS is used with CBC encryption, allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified other impact via a crafted TLS packet that is not properly handled during a certain explicit IV calculation.
  • DSA-2475: openssl -- integer underflow
  • OSVDB ID: 81810: OpenSSL CBC Encryption DTLS Packet TLS Record Length Parsing Remote DoS
  • RHSA-2012-0699: Moderate: openssl security and bug fix update
  • SA49116: OpenSSL TLS Packet Parsing Integer Underflow Denial of Service Vulnerability
  • SA50097: IBM AIX and Virtual I/O Server OpenSSL Multiple Vulnerabilities
  • SA51312: IBM Tivoli Management Framework OpenSSL Denial of Service Vulnerability
  • SA51595: IBM Rational ClearCase OpenSSL TLS Integer Underflow Denial of Service Vulnerability
  • SA51851: IBM System Storage TS3310 Tape Library OpenSSL Denial of Service Vulnerability
  • SA52850: syslog-ng Premium Edition Two OpenSSL Vulnerabilities

Platforms Affected:

  • Apple Mac OS X Lion 10.8
  • Apple Mac OS X Lion 10.8.1
  • Apple Mac OS X Lion 10.8.2
  • Apple Mac OS X Lion 10.8.3
  • BalaBit syslog-ng 4.0 Premier
  • IBM AIX 5.1
  • IBM AIX 6.1
  • IBM AIX 7.1
  • IBM Rational ClearCase 7.0
  • IBM Rational ClearCase 7.1
  • IBM Smart Analytics System 7600 9.7
  • IBM Smart Analytics System 7700 9.7
  • IBM Smart Analytics System 7710 9.7
  • IBM System Storage TS2900 Tape Library
  • IBM Tivoli Management Framework 4.1
  • IBM TS3310 Tape Library
  • IBM TS3400 Tape Library
  • IBM VIOS 2.1
  • OpenSSL OpenSSL 0.9.8h
  • OpenSSL OpenSSL 0.9.8i
  • OpenSSL OpenSSL 0.9.8j
  • OpenSSL OpenSSL 0.9.8k
  • OpenSSL OpenSSL 0.9.8l
  • OpenSSL OpenSSL 0.9.8m
  • OpenSSL OpenSSL 1.0.0
  • OpenSSL OpenSSL 1.0.0a
  • OpenSSL OpenSSL 1.0.0B
  • OpenSSL OpenSSL 1.0.0c
  • OpenSSL OpenSSL 1.0.0d
  • OpenSSL OpenSSL 1.0.0E
  • OpenSSL OpenSSL 1.0.0f
  • OpenSSL OpenSSL 1.0.0G
  • OpenSSL OpenSSL 1.0.1
  • RedHat Enterprise Linux 5
  • RedHat Enterprise Linux 5 Client Workstation
  • RedHat Enterprise Linux 5 Client
  • RedHat Enterprise Linux 6 Workstation
  • RedHat Enterprise Linux 6 Server
  • RedHat Enterprise Linux Desktop 6
  • RedHat Enterprise Linux HPC Node 6

Reported:

May 10, 2012

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this

Return to the main page

* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

About IBM Internet Security Systems

IBM Internet Security Systems is a trusted security advisor to thousands of the world's leading businesses and governments, helping to provide pre-emptive protection for networks, desktops and servers. The IBM Proventia? integrated security platform is designed to automatically protect against both known and unknown threats, helping to keep networks up and running and shield customers from online attacks before they impact business assets. IBM Internet Security Systems products and services are based on the proactive security intelligence of its X-Force? research and development team ? an unequivocal world authority in vulnerability and threat research. The IBM Internet Security Systems product line is also complemented by comprehensive Managed Security Services and Professional Security Services. For more information, visit the IBM Internet Security Systems Web site at www.iss.net or call 800-776-2362.