OpenSSL TLS record denial of service
| openssl-tls-record-dos (75525) |  Medium 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:
- 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:
- 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 Server
- RedHat Enterprise Linux 6 Workstation
- RedHat Enterprise Linux Desktop 6
- RedHat Enterprise Linux HPC Node 6
Reported:
May 10, 2012
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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.