Security Bulletin: Multiple security vulnerabilities in GSKit used by Edge Caching proxy of WebSphere Application Server

Summary

There are multiple security vulnerabilities in the GSKit used by Edge Caching proxy of WebSphere Application Server.
This is a separate install from WebSphere Application Server. You only need to apply this if you use the Edge Caching Proxy.

Vulnerability Details

CVEID: CVE-2018-1447 DESCRIPTION: The GSKit (IBM Spectrum Protect 7.1 and 7.2) and (IBM Spectrum Protect Snapshot 4.1.3, 4.1.4, and 4.1.6) CMS KDB logic fails to salt the hash function resulting in weaker than expected protection of passwords. A weak password may be recovered. Note: After update the customer should change password to ensure the new password is stored more securely. Products should encourage customers to take this step as a high priority action. IBM X-Force ID: 139972.
CVSS Base Score: 5.1
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/139972&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:H/I:N/A:N)

CVEID: CVE-2018-1427 DESCRIPTION: IBM GSKit (IBM DB2 for Linux, UNIX and Windows 9.7, 10.1, 10.5, and 11.1) contains several enviornment variables that a local attacker could overflow and cause a denial of service. IBM X-Force ID: 139072.
CVSS Base Score: 6.2
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/139072&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2018-1426 DESCRIPTION: IBM GSKit (IBM DB2 for Linux, UNIX and Windows 9.7, 10.1, 10.5, and 11.1) duplicates the PRNG state across fork() system calls when multiple ICC instances are loaded which could result in duplicate Session IDs and a risk of duplicate key material. IBM X-Force ID: 139071.
CVSS Base Score: 7.4
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/139071&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-2017-3736 DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by a carry propagation flaw in 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: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/134397&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:N/A:N)

CVEID: CVE-2017-3732 DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by a carry propagating bug in the x86_64 Montgomery squaring procedure. An attacker could exploit this vulnerability to obtain information about the private key.
CVSS Base Score: 5.3
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/121313&gt; 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-2016-0705 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-2016-0702 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)

Affected Products and Versions

These vulnerabilities affect the Edge Caching Proxy (separate install) shipped with the following versions and releases of IBM WebSphere Application Server:

• Version 9.0
• Version 8.5
• Version 8.0

Remediation/Fixes

The recommended solution is to apply the Fix Pack or PTF for each named product as soon as practical.

Fix:
Apply an Interim Fix, Fix Pack or PTF containing APAR PH00635 if you use the Edge Caching Proxy component (separate install from WebSphere Application Server) as noted below:

For IBM WebSphere Application Server
For V9.0.0.0 through 9.0.0.8:

• Upgrade to 9.0.0.7 or 9.0.0.8 fix pack level then apply Interim Fix 9.0.8-WS-EDGECP-FP00000081.zip

-- OR

• Apply Fix Pack 9 (9.0.0.9), or later.

For V8.5.0.0 through 8.5.5.14:

• Upgrade to 8.5.5.13 or 8.5.5.14 fix pack level and then apply Interim Fix 8.5.5-WS-EDGECP-FP000000141.zip

-- OR

• Apply Fix Pack 15 (8.5.5.15), or later (targeted availability 1Q2019).

For V8.0.0.0 through 8.0.0.1****5:

• Upgrade to 8.0.0.15 fix pack level and then apply Interim Fix 8.0.0-WS-EDGECP-FP000000151.zip

_WebSphere Application Server V8 is no longer in full support; IBM recommends upgrading to a fixed, supported version/release/platform of the product. _