Security Bulletin: Vulnerabilities in OpenSSL affect LCM8 & LCM16 KVM Switch Firmware and GCM16 & GCM32 KVM Switch Firmware (CVE-2015-3193, CVE-2015-3194, CVE-2015-3195, CVE-2015-3196, CVE-2015-1794)

Vulnerability Details

Summary

OpenSSL vulnerabilities were disclosed on December 3, 2015 by the OpenSSL Project. OpenSSL is used by LCM8 and LCM16 KVM Switch Firmware and GCM16 and GCM32 KVM Switch Firmware. LCM8 and LCM16 KVM Switch Firmware and GCM16 and GCM32 KVM Switch Firmware have addressed the applicable CVEs.

Vulnerability Details

CVE-ID: CVE-2015-3193

Description: OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error in the x86_64 Montgomery squaring procedure. An attacker with online access to an unpatched system could exploit this vulnerability to obtain private key information.

CVSS Base Score: 5.3
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/108502 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVE-ID: CVE-2015-3194

Description: OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference when verifying certificates via a malformed routine. An attacker could exploit this vulnerability using signature verification routines with an absent PSS parameter to cause any certificate verification operation to crash.

CVSS Base Score: 5.3
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/108503 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVE-ID: CVE-2015-3195

Description: OpenSSL could allow a remote attacker to obtain sensitive information, caused by a memory leak in a malformed X509_ATTRIBUTE structure. An attacker could exploit this vulnerability to obtain CMS data and other sensitive information.

CVSS Base Score: 5.3
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/108504 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVE-ID: CVE-2015-3196

Description: OpenSSL is vulnerable to a denial of service, caused by a race condition when PSK identity hints are received by a multi-threaded client and the SSL_CTX structure is updated with the incorrect value. An attacker could exploit this vulnerability to possibly corrupt memory and cause a denial of service.

CVSS Base Score: 3.7
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/108505 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVE-ID: CVE-2015-1794

Description: OpenSSL is vulnerable to a denial of service, caused by an error when a client receives a ServerKeyExchange for an anonymous DH ciphersuite with the value of p set to 0. An attacker could exploit this vulnerability to trigger a segfault and cause a denial of service.

CVSS Base Score: 3.7
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/108539 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected products and versions

Remediation/Fixes

Firmware updates are available at IBM Fix Central - http://www.ibm.com/support/fixcentral/

You should verify applying this fix does not cause any compatibility issues.

Workarounds and Mitigations

None.

References

• Complete CVSS V3 Guide
• On-line Calculator V3

Related Information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

None.

Change History
02 August, 2016: Original Version Published

* 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

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.