Security Bulletin: Vulnerability in XDR affects IBM DataPower Gateways (CVE-2017-8804)

Summary

A potential Denial of Service vulnerability exists in XDR. IBM DataPower Gateways has addressed the applicable CVE.

Vulnerability Details

CVEID: CVE-2017-8804**
DESCRIPTION:** glibc is vulnerable to a denial of service, caused by improper handling of buffer deserialization in the xdr_bytes and xdr_string functions. By sending a specially-crafted UDP packet, a remote attacker could exploit this vulnerability to cause virtual memory allocation, or memory consumption on the system.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/125760 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:H)

Affected Products and Versions

IBM DataPower Gateways appliances, versions through 7.0.0.0-7.0.0.19, 7.1.0.0-7.1.0.18, 7.2.0.0-7.2.0.15, 7.5.0.0-7.5.0.9, 7.5.1.0-7.5.1.8, 7.5.2.0-7.5.2.8, 7.6.0.0-7.6.0.1

Remediation/Fixes

Fix is available in versions 7.0.0.20, 7.1.0.19, 7.2.0.16, 7.5.0.10, 7.5.1.9, 7.5.2.9, 7.6.0.2. Refer to APAR IT22121 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