Security Bulletin: glibc getaddrinfo stack-based buffer overflow (CVE-2015-7547)

Summary

IBM SmartCloud Entry is vulnerable to a glic vulnerability, which allows a romote attacker overflow a buffer and cause the application to crash.

Vulnerability Details

CVEID: CVE-2015-7547**
DESCRIPTION:** GNU C Library (glibc) is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the nss_dns backend for the getaddrinfo() function when performing dual A/AAAA DNS queries. By sending a specially crafted DNS response, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 8.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/110662 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:H)

Affected Products and Versions

IBM SmartCloud Entry 2.2.0 through 2.2.0.4 Appliance fix pack 4
IBM SmartCloud Entry 2.3.0 through 2.3.0.4 Appliance fix pack 4
IBM SmartCloud Entry 2.4.0 through 2.4.0.4 Appliance fix pack 4
IBM SmartCloud Entry 3.1.0 through 3.1.0.4 Appliance fix pack 18
IBM SmartCloud Entry 3.2.0 through 3.2.0.4 Appliance fix pack 18

Remediation/Fixes

Product

| VRMF| APAR| Remediation/First Fix
—|—|—|—
IBM SmartCloud Entry| 2.2| None| IBM SmartCloud Entry 2.2.0 Appliance fix pack 5:
http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~Other%2Bsoftware&product=ibm/Other+software/IBM+Starter+Kit+for+Cloud&release=All&platform=All&function=fixId&fixids=2.2.0.4-IBM-SKC_APPL-FP005&includeSupersedes=0
IBM SmartCloud Entry| 2.3| None| IBM SmartCloud Entry 2.3.0 Appliance fix pack 5:
http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~Other%2Bsoftware&product=ibm/Other+software/IBM+SmartCloud+Entry&release=All&platform=All&function=fixId&fixids=+2.3.0.4-IBM-SCE_APPL-FP005+&includeSupersedes=0
IBM SmartCloud Entry| 2.4| None| IBM SmartCloud Entry 2.4.0 Appliance fix pack 5:
http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~Other%2Bsoftware&product=ibm/Other+software/IBM+SmartCloud+Entry&release=All&platform=All&function=fixId&fixids=+2.4.0.4-IBM-SCE_APPL-FP005+&includeSupersedes=0
IBM SmartCloud Entry| 3.1| None| IBM SmartCloud Entry 3.1.0 Appliance fix pack 19:
http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~Other%2Bsoftware&product=ibm/Other+software/IBM+SmartCloud+Entry&release=3.1.0&platform=All&function=fixId&fixids=+3.1.0.4-IBM-SCE_APPL-FP19+&includeSupersedes=0
IBM SmartCloud Entry| 3.2| None| IBM SmartCloud Entry 3.2.0 Appliance fix pack 19:
http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~Other%2Bsoftware&product=ibm/Other+software/IBM+SmartCloud+Entry&release=All&platform=All&function=fixId&fixids=+3.2.0.4-IBM-SCE_APPL-FP19+&includeSupersedes=0

Workarounds and Mitigations

None