Security Bulletin: Vulnerabilities in SSL affect IBM DataPower Gateways (CVE-2017-3731, CVE-2016-7055)

Summary

Two potential denial of service vulnerabilities have been reported by the OpenSSL project. IBM DataPower Gateways has addressed the applicable CVEs.

Vulnerability Details

Relevant CVE Information:

CVEID: CVE-2017-3731**
DESCRIPTION:** OpenSSL is vulnerable to a denial of service, caused by an out-of-bounds read when using a specific cipher. By sending specially crafted truncated packets, a remote attacker could exploit this vulnerability using CHACHA20/POLY1305 to cause the application to crash.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121312 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2016-7055**
DESCRIPTION:** OpenSSL is vulnerable to a denial of service, caused by an error in a Broadwell-specific Montgomery multiplication procedure. By sending specially crafted data, a remote attacker could exploit this vulnerability to trigger errors in public-key operations in configurations where multiple remote clients select an affected EC algorithm and cause a denial of service.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/118748 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

CVE-2016-7055 - DataPower versions 7.2.0.0-7.2.0.13, 7.5.0.0-7.5.0.7, 7.5.1.0-7.5.1.6 and 7.5.2.0-7.5.2.6
CVE-2017-3731 - DataPower versions 7.0.0.0-7.0.0.18, 7.1.0.0-7.1.0.16, 7.2.0.0-7.2.0.13, 7.5.0.0-7.5.0.7, 7.5.1.0-7.5.1.6 and 7.5.2.0-7.5.2.6

Remediation/Fixes

Fix is available in versions 7.0.0.19, 7.1.0.17, 7.2.0.14, 7.5.0.8, 7.5.1.7, 7.5.2.7. Refer to APAR IT20690 for URLs to download the fix.

You should verify applying this fix does not cause any compatibility issues.

For DataPower customers using versions 6.x and earlier versions, IBM recommends upgrading to a fixed, supported version/release/platform of the product.

Workarounds and Mitigations

None