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Security Bulletin: Vulnerabilities in Open Source OpenSSL affect IBM Cisco SAN switches and directors (CVE-2016-2177 CVE-2000-1254 CVE-2016-2178).

Security Bulletin


Summary

Open Source OpenSSL is used by IBM Cisco SAN switches and directors. IBM Cisco SAN switches and directors has addressed the applicable CVEs.

Vulnerability Details

Relevant CVE Information:

CVEID: CVE-2000-1254
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by the improper handling of C bitwise-shift operations that exceed the size of an expression by crypto/rsa/rsa_gen.c. An attacker could exploit this vulnerability to defeat cryptographic protection mechanisms and decrypt data.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113136 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2016-2178
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error in the DSA implementation that allows the following of a non-constant time codepath for certain operations. An attacker could exploit this vulnerability using a cache-timing attack to recover the private DSA key.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113889 for the 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)

CVEID: CVE-2016-2177
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by the incorrect use of pointer arithmetic for heap-buffer boundary checks. By leveraging unexpected malloc behavior, a remote attacker could exploit this vulnerability to trigger an integer overflow and cause the application to crash.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113890 for the 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:H)

Affected Products and Versions

NX-OS 5.X versions prior to 5.2.8(i)

NX-OS 6.X versions prior to 6.2(19)

NX-OS 7.X versions

NX-OS 8.X versions prior to 8.1

DCNM versions prior to 10.3(1)

Remediation/Fixes

Product

VRMFFIX
NX-OS5.2.8(i)https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/5_2/release/notes/nx-os/mds_nxos_rn_528i.html
NX-OS6.2(19)https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/6_2/release/notes/nx-os/mds_nxos_rn_6_2_19.html
NX-OS8.1https://www.cisco.com/c/en/us/support/storage-networking/mds-9000-nx-os-software-release-8-1/model.html
DCNM10.3(1)https://www.cisco.com/c/en/us/support/cloud-systems-management/data-center-network-manager-10/model.html


For NX-OS 7.X versions, IBM recommends upgrading to a fixed version of NX-OS 8.1.

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References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

23 Aug 2017: Initial Bulletin

*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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Document Information

Modified date:
11 April 2022

UID

ssg1S1010570

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