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AUSCERT External Security Bulletin Redistribution
ESB-2016.1287
Security Bulletin: Vulnerabilities in XML processing affect
IBM DataPower Gateways
23 May 2016
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: IBM DataPower Gateways
Publisher: IBM
Operating System: Network Appliance
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-8317 CVE-2015-8242 CVE-2015-8241
CVE-2015-7942 CVE-2015-7941 CVE-2015-7500
CVE-2015-7499 CVE-2015-7498 CVE-2015-7497
CVE-2015-5312
Reference: ESB-2016.0678
ESB-2016.0369
ESB-2016.0185
ESB-2015.3240
ESB-2015.3214
ESB-2015.3057
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg21982607
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Security Bulletin: Vulnerabilities in XML processing affect IBM DataPower
Gateways
Security Bulletin
Document information
More support for:
IBM DataPower Gateways
Software version:
7.2
Operating system(s):
Firmware
Reference #:
1982607
Modified date:
2016-05-20
Summary
IBM DataPower Gateways has addressed vulnerabilities in processing certain
XML files that could cause a denial of service.
Vulnerability Details
CVEID:
CVE-2015-5312
DESCRIPTION:
An unspecified error in Libxml2 related to an entity expansion flaw has an
unknown impact and attack vector.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/108319
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:L/A:N)
CVEID:
CVE-2015-7497
DESCRIPTION:
Libxml2 is vulnerable to a denial of service, caused by a heap-based buffer
overflow in the xmlDictComputeFastQKey() function. A remote attacker could
exploit this vulnerability to cause a denial of service.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/108320
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-2015-7498
DESCRIPTION:
An unspecified error in Libxml2 related to the processing of entities after
encoding conversion failures have occured has an unknown impact and attack
vector.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/108321
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:L/A:N)
CVEID:
CVE-2015-7499
DESCRIPTION:
An unspecified error in Libxml2 related to some parser errors has an unknown
impact and attack vector.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/108322
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:L/A:N)
CVEID:
CVE-2015-7500
DESCRIPTION:
Libxml2 is vulnerable to a denial of service, caused by a memory access error
when handling invalid entity boundaries. A remote attacker could exploit this
vulnerability to cause a denial of service.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/108323
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-2015-7941
DESCRIPTION:
Libxml2 is vulnerable to a denial of service, caused by a heap-based buffer
overflow in the xmlParseEntityDecl or xmlParseConditionalSections function.
By using specially-crafted XML data, a remote attacker could exploit this
vulnerability to trigger an out-of-bounds read and cause the system to crash.
CVSS Base Score: 4.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/108071
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
CVEID:
CVE-2015-7942
DESCRIPTION:
Libxml2 is vulnerable to a denial of service, caused by a heap-based buffer
overflow in the xmlParseConditionalSections function. By using specially-
crafted XML data, a remote attacker could exploit this vulnerability to
trigger an out-of-bounds read and cause the system to crash.
CVSS Base Score: 4.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/108073
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
CVEID:
CVE-2015-8241
DESCRIPTION:
libxml2 is vulnerable to a buffer overflow, caused by improper bounds
checking by the XML parser in xmlNextChar. By using a malformed XML file, a
local attacker could overflow a buffer and execute arbitrary code on the
system or cause the application to crash.
CVSS Base Score: 5.9
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/108169
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
CVEID:
CVE-2015-8242
DESCRIPTION:
libxml2 is vulnerable to a stack-based buffer overflow, caused by improper
bounds checking by the HTML parser in push mode in xmlSAX2TextNode. By using
a malformed XML file, a local attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 5.9
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/108170
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
CVEID:
CVE-2015-8317
DESCRIPTION:
libxml2 is vulnerable to a heap-based buffer overflow, caused by improper
bounds checking by the xmlParseXMLDecl function. By using a malformed XML
file, a local attacker could overflow a buffer and execute arbitrary code on
the system or cause the application to crash.
CVSS Base Score: 5.9
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/108316
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
Affected Products and Versions
IBM DataPower Gateway appliances versions 7.2.0.0 to 7.2.0.5
Remediation/Fixes
Fix is available in versions 7.2.0.6. Refer to
APAR IT15089
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
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References
Complete CVSS v3 Guide
On-line Calculator v3
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
5/20/2016 Original version published
*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact
of this vulnerability in their environments by accessing the links in the
Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT
OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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