Security Bulletin: Multiple Vulnerabilities in OpenSSL affect IBM® SDK for Node.js™

Summary

OpenSSL vulnerabilities were disclosed on March 1, 2016 by the OpenSSL Project. OpenSSL is used by IBM SDK for Node.js. IBM SDK for Node.js has addressed the applicable CVEs including the “DROWN: Decrypting RSA with Obsolete and Weakened eNcryption” vulnerability.

Vulnerability Details

CVEID: CVE-2016-0800**
DESCRIPTION:** OpenSSL could allow a remote attacker to bypass security restrictions. By using a server that supports SSLv2 and EXPORT cipher suites as a Bleichenbacher RSA padding oracle, an attacker could exploit this vulnerability to decrypt TLS sessions between clients and non-vulnerable servers. This vulnerability is also known as the DROWN attack.
CVSS Base Score: 7.4
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/111139&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)

CVEID: CVE-2016-0705**
DESCRIPTION:** OpenSSL is vulnerable to a denial of service, caused by a double-free error when parsing DSA private keys. An attacker could exploit this vulnerability to corrupt memory and cause a denial of service.
CVSS Base Score: 3.7
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/111140&gt; 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:L)

CVEID: CVE-2016-0797**
DESCRIPTION:** OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference in the BN_hex2bn/BN_dec2bn() function. An attacker could exploit this vulnerability using specially crafted data to cause a denial of service.
CVSS Base Score: 3.7
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/111142&gt; 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:L)

CVEID: CVE-2016-0702**
DESCRIPTION:** OpenSSL could allow a local attacker to obtain sensitive information, caused by a side-channel attack against a system based on the Intel Sandy-Bridge microarchitecture. An attacker could exploit this vulnerability to recover RSA keys.
CVSS Base Score: 2.9
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/111144&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2016-0703**
DESCRIPTION:** OpenSSL could allow a remote attacker to bypass security restrictions, caused by the failure to enforce that a clear-key-length value is 0 for non-export ciphers by the SSLv2 's2_srvr.c code. When clear-key bytes displace encrypted-key bytes, an attacker could exploit this vulnerability to conduct a divide-and-conquer key recovery attack.
CVSS Base Score: 7.4
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/111145&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)

CVEID: CVE-2016-0704**
DESCRIPTION:** OpenSSL could allow a remote attacker to bypass security restrictions. The s2_srvr.c code overwrites the wrong bytes in the master-key when applying Bleichenbacher protection for export cipher suites. An attacker could exploit this vulnerability using a Bleichenbacher oracle to decrypt sessions.
CVSS Base Score: 5.9
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/111146&gt; 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:H/A:N)

Affected Products and Versions

These vulnerabilities affect IBM SDK for Node.js v1.1.0.19 and earlier releases.
These vulnerabilities affect IBM SDK for Node.js v1.2.0.9 and earlier releases.
A subset of these vulnerabilities affect IBM SDK for Node.js v4.3.1.0 and earlier releases. See Remediation/Fixes section for details.

Remediation/Fixes

CVE ID

|

Fixed IBM SDK for Node.js releases

—|—

1.1.x

|

1.2.x

|

4.x

CVE-2016-0800*

|

1.1.0.20 *

|

1.2.0.10 *

|

N/A

CVE-2016-0705

|

1.1.0.20

|

1.2.0.10

|

4.3.2.0

CVE-2016-0797

|

1.1.0.20

|

1.2.0.10

|

4.3.2.0

CVE-2016-0702

|

1.1.0.20

|

1.2.0.10

|

4.3.2.0

CVE-2016-0703*

|

1.1.0.20 *

|

1.2.0.10 *

|

N/A

CVE-2016-0704*

|

1.1.0.20 *

|

1.2.0.10 *

|

N/A

• These CVEs only apply when SSLv2 is explicitly enabled using the command line option --enable-ssl2. This is not the default configuration. Also note that the fix for these CVEs includes the complete removal of SSLv2 support and the --enable-ssl2 option.

IBM SDK for Node.js can be downloaded, subject to the terms of the developerWorks license, from here.

IBM customers requiring an update for an SDK shipped with an IBM product should contact IBM support, and/or refer to the appropriate product security bulletin.