OpenSSL policy checks denial of service
| openssl-policy-checks-dos (72129) |  Medium Risk |
Description:
OpenSSL is vulnerable to a denial of service, caused by a double-free error within the policy checks. If X509_V_FLAG_POLICY_CHECK is set, a remote attacker could exploit this vulnerability to cause a denial of service.
*CVSS:
| Base Score: | 4.3 |
| Access Vector: | Network |
| Access Complexity: | Medium |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 3.2 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of OpenSSL (0.9.8s or later), available from the OpenSSL Web site. See References.
For other distributions:
Apply the appropriate update for your system. See References.
References:
- IBM SECURITY ADVISORY: Multiple OpenSSL vulnerabilities.
- IBM Security Bulletin 1625170: IBM Smart Analytics System 7600, 7700, and 7710 are affected by vulnerabilities in OpenSSL.
- OpenSSL Security Advisory [04 Jan 2012]: Six security flaws have been fixed in OpenSSL 1.0.0f and 0.9.8s..
- OpenSSL Web site: OpenSSL.
- pfSense Web site: pfSense Open Source Firewall Distribution - Home.
- BID-51281: OpenSSL Multiple Vulnerabilities
- CVE-2011-4109: Double free vulnerability in OpenSSL 0.9.8 before 0.9.8s, when X509_V_FLAG_POLICY_CHECK is enabled, allows remote attackers to have an unspecified impact by triggering failure of a policy check.
- DSA-2390: openssl -- several vulnerabilities
- OSVDB ID: 78187: OpenSSL X509_V_FLAG_POLICY_CHECK Double-free Unspecified Weakness
- RHSA-2012-0060: Moderate: openssl security update
- RHSA-2012-0168: Important: rhev-hypervisor5 security and bug fix update
- SA47426: OpenSSL Multiple Vulnerabilities
- SA48528: IBM AIX OpenSSL Multiple Vulnerabilities
- SA51674: pfSense Multiple Vulnerabilities
Platforms Affected:
- IBM AIX 5.3
- IBM AIX 6.1
- IBM AIX 7.1
- IBM Smart Analytics System 7600 9.7
- IBM Smart Analytics System 7700 9.7
- IBM Smart Analytics System 7710 9.7
- OpenSSL OpenSSL 0.9.8a
- OpenSSL OpenSSL 0.9.8b
- OpenSSL OpenSSL 0.9.8c
- OpenSSL OpenSSL 0.9.8d
- OpenSSL OpenSSL 0.9.8e
- OpenSSL OpenSSL 0.9.8f
- OpenSSL OpenSSL 0.9.8g
- 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 0.9.8N
- OpenSSL OpenSSL 0.9.8O
- OpenSSL OpenSSL 0.9.8P
- OpenSSL OpenSSL 0.9.8Q
- pfSense pfSense 2.0
- RedHat Enterprise Linux 5 Client Workstation
- RedHat Enterprise Linux 5 Client
- RedHat Enterprise Linux 5
- RedHat Enterprise Virtualization
Reported:
Jan 04, 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.