Security Bulletin: OpenSSL security vulnerability issues on IBM SONAS (CVE-2013-4353, CVE-2013-6449, CVE-2013-6450)

Security Bulletin

Summary

For the three security issues with openssl that could result in denial of service, a fix is available for IBM SONAS

Vulnerability Details

CVEID:
CVE-2013-4353
CVE-2013-6449
CVE-2013-6450

DESCRIPTION:
OpenSSL is used in IBM SONAS for providing communication security by encrypting data being transmitted.

OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference when handling malicious S/MIME messages. By sending a specially-crafted TLS handshake, a remote attacker could exploit this vulnerability to cause a connecting client to crash.
CVE-2013-4353
CVSS Base Score: 5
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/90201 for the current score

OpenSSL is vulnerable to a denial of service, caused by an error in the ssl_get_algorithm2 function. A remote attacker could exploit this vulnerability using specially-crafted traffic from a TLS 1.2 client to cause the daemon to crash.
CVE-2013-6449
CVSS Base Score: 4.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/90068 for the current score

OpenSSL is vulnerable to a denial of service, caused by the failure to properly maintain data structures for digest and encryption contexts by the DTLS retransmission implementation. A remote attacker could exploit this vulnerability to cause the daemon to crash.
CVE-2013-6450
CVSS Base Score: 4.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/90069 for the current score

Affected Products and Versions

IBM SONAS
The product is affected when running a code releases 1.3.0.0 to 1.4.3.2

Remediation/Fixes

A fix for these issues is in version 1.4.3.3 of IBM SONAS. Customers running an affected version of SONAS should upgrade to SONAS 1.4.3.3 or a later version, so that the fix gets applied.

Workarounds and Mitigations

Workaround(s) : None.

Mitigation(s) : A fix for these issues is in version 1.4.3.3 of IBM SONAS. Customers running an affected version of IBM SONAS should upgrade to 1.4.3.3 or a later version, so that the fix gets applied.

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References

Complete CVSS v2 Guide
On-line Calculator v2

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*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

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Tips

Security Bulletin: OpenSSL security vulnerability issues on IBM SONAS (CVE-2013-4353, CVE-2013-6449, CVE-2013-6450)