Security Bulletin: Vulnerabilities in OpenSSL affect IBM i (CVE-2016-0701, CVE-2015-3197)

Summary

OpenSSL vulnerabilities affect IBM i. IBM i has addressed the applicable CVEs.

Vulnerability Details

CVEID: CVE-2016-0701 DESCRIPTION: OpenSSL could allow a remote attacker to conduct man-in-the-middle attacks, caused by the use of weak Diffie-Hellman parameters based on unsafe primes that are generated and stored in X9.42-style parameter files. By performing multiple handshakes using the same private DH exponent, an attacker could exploit this vulnerability to conduct man-in-the-middle attacks.
CVSS Base Score: 5.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/110234 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N)

CVEID: CVE-2015-3197 DESCRIPTION: OpenSSL could allow a remote attacker to conduct man-in-the-middle attacks, caused by the use of weak Diffie-Hellman parameters based on unsafe primes that are generated and stored in X9.42-style parameter files. By performing multiple handshakes using the same private DH exponent, an attacker could exploit this vulnerability to conduct man-in-the-middle attacks.
CVSS Base Score: 5.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/110235 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N)

Affected Products and Versions

Releases 7.1 and 7.2 of IBM i are affected.

Remediation/Fixes

The issue can be fixed by applying a PTF to the IBM i Operating System.

Releases 7.1 and 7.2 of IBM i are supported and will be fixed.

http://www-933.ibm.com/support/fixcentral/

The IBM i PTF numbers are:

Release 7.1 – SI59213 Release 7.2 – SI59204

_Important note: _IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.

Workarounds and Mitigations

None