Security Bulletin: Vulnerabilities in standard C library affect IBM DataPower Gateways (CVE-2013-7423, CVE-2015-1781)

Summary

IBM DataPower Gateways has addressed a vulnerability in the standard C library that it uses to access DNS.

Vulnerability Details

CVEID: CVE-2013-7423**
DESCRIPTION:** GNU glibc could allow a local attacker to obtain sensitive information, caused by the writing of DNS queries to random file descriptors under high load by the getaddrinfo() function. An attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base Score: 1.2
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/#/vulnerabilities/100647 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:H/Au:N/C:P/I:N/A:N)

CVEID: CVE-2015-1781**
DESCRIPTION:** GNU C Library (glibc) is vulnerable to a buffer overflow, caused by improper bounds checking by the gethostbyname_r() and other related functions. By sending a specially-crafted argument, a remote attacker could overflow a buffer and execute arbitrary code on the system elevated privileges or cause the application to crash.
CVSS Base Score: 5.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/#/vulnerabilities/102500 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:H/Au:N/C:P/I:P/A:P)

Affected Products and Versions

IBM DataPower Gateways appliances all versions through 6.0.0.15, 6.0.1.11, 7.0.0.8, 7.1.0.5, 7.2.0.0

Remediation/Fixes

Fix is available in versions 6.0.0.16, 6.0.1.12, 7.0.0.9, 7.1.0.6, 7.2.0.1. Refer to APAR IT10055 for URLs to download the fix.

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

For DataPower customers using versions 5.x and older versions, IBM recommends upgrading to a fixed, supported version/release/platform of the product.

Workarounds and Mitigations

None