Security Bulletin: IBM Sterling Connect:Express for UNIX is Affected by the Following OpenSSL Vulnerabilities (CVE-2017-3736, CVE-2017-3737, CVE-2017-3738)

Summary

Security vulnerabilities were disclosed on Nov 1, 2017 and Dec 6, 2017 by the OpenSSL Project. OpenSSl is used by IBM Sterling Connect:Express for UNIX. IBM Sterling Connect:Express for UNIX has addressed the applicable CVEs.

Vulnerability Details

CVE-ID:CVE-2017-3736

**Description:**OpenSSL could allow a remote attacker to obtain sensitive information, caused by a carry propagation flaw in the the x86_64 Montgomery squaring function bn_sqrx8x_internal(). An attacker with online access to an unpatched system could exploit this vulnerability to obtain information about the private key.

CVSS Base Score: 5.9
CVSS Temporal Score: <https://exchange.xforce.ibmcloud.com/vulnerabilities/134397&gt; for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVE-ID:CVE-2017-3737

Description: An unspecified vulnerability in multiple Oracle products could allow an unauthenticated attacker to cause low confidentiality impact, low integrity impact, and high availability impact.

CVSS Base Score: 5.3
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/136077 for more informationCVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVE-ID:CVE-2017-3738

Description: OpenSSL could allow a remote attacker to obtain sensitive information, caused by an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. An attacker could exploit this vulnerability to obtain information about the private key.
Note: In order to exploit this vulnerability, the server would have to share the DH1024 private key among multiple clients, which is no longer an option since CVE-2016-0701.

CVSS Base Score: 3.1
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/136078 for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

IBM Sterling Connect:Express for UNIX 1.5.0.15

• All versions prior to 1.5.0.15 iFix 150-1507

Remediation/Fixes

The recommended solution is to apply the fix as soon as practical. Please see below for information about the available fixes.

Workarounds and Mitigations

None