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Security Bulletin: Libxml2 vulnerabilities affect IBM SmartCloud Entry

Security Bulletin


Summary

SmartCloud Entry is vulerable to libxml2 vulnerabilities. An attacker could exploit these vulnerabilities to obtain sensitive information, execute arbitrary codes, or cause a denial of service, segmentation faults or crahes
CVE-2016-1762 CVE-2016-1833 CVE-2016-1834 CVE-2016-1835 CVE-2016-1836 CVE-2016-1837 CVE-2016-1838 CVE-2016-4448 CVE-2016-4449 CVE-2016-1839 CVE-2016-1840 CVE-2016-3627 CVE-2016-3705 CVE-2016-4447

Vulnerability Details


CVEID: CVE-2016-1762
DESCRIPTION:
Apple Safari and Apple iOS could allow a remote attacker to execute arbitrary code on the system, caused by a memory corruption error in libxml2. By persuading a victim to open a specially-crafted XML file, a remote attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111628 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-1833
DESCRIPTION:
Apple Mac OS X and Apple IOS could allow a remote attacker to execute arbitrary code on the system, caused by a memory corruption error in libxml2. By persuading a victim to open a specially crafted XML file, an attacker could exploit this vulnerability to execute arbitrary code on the system or cause a denial of service.
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113327 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-1834
DESCRIPTION:
Apple Mac OS X and Apple IOS could allow a remote attacker to execute arbitrary code on the system, caused by a memory corruption error in libxml2. By persuading a victim to open a specially crafted XML file, an attacker could exploit this vulnerability to execute arbitrary code on the system or cause a denial of service.
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113328 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-1835
DESCRIPTION:
Apple Mac OS X and Apple IOS could allow a remote attacker to execute arbitrary code on the system, caused by a memory corruption error in libxml2. By persuading a victim to open a specially crafted XML file, an attacker could exploit this vulnerability to execute arbitrary code on the system or cause a denial of service.
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113329 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-1836
DESCRIPTION:
Apple Mac OS X and Apple IOS could allow a remote attacker to execute arbitrary code on the system, caused by a memory corruption error in libxml2. By persuading a victim to open a specially crafted XML file, an attacker could exploit this vulnerability to execute arbitrary code on the system or cause a denial of service.
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113330 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-1837
DESCRIPTION:
Apple Mac OS X and Apple IOS could allow a remote attacker to execute arbitrary code on the system, caused by a memory corruption error in libxml2. By persuading a victim to open a specially crafted XML file, an attacker could exploit this vulnerability to execute arbitrary code on the system or cause a denial of service.
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113331 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-1838
DESCRIPTION:
Apple Mac OS X and Apple IOS could allow a remote attacker to execute arbitrary code on the system, caused by a memory corruption error in libxml2. By persuading a victim to open a specially crafted XML file, an attacker could exploit this vulnerability to execute arbitrary code on the system or cause a denial of service.
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113332 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-4448
DESCRIPTION:
libxml2 could allow a remote attacker to execute arbitrary code on the system, caused by a format string error. By using a specially crafted html file containing malicious format specifiers, a remote attacker could exploit this vulnerability to execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113523 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-4449
DESCRIPTION:
libxml2 could allow a remote attacker to obtain sensitive information, caused by a XML external entity (XXE) error when processing XML data by the XML parser. A remote attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113524 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2016-1839
DESCRIPTION:
Apple Mac OS X and Apple IOS could allow a remote attacker to execute arbitrary code on the system, caused by a memory corruption error in libxml2. By persuading a victim to open a specially crafted XML file, an attacker could exploit this vulnerability to execute arbitrary code on the system or cause a denial of service.
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113333 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-1840
DESCRIPTION:
Apple Mac OS X and Apple IOS could allow a remote attacker to execute arbitrary code on the system, caused by a memory corruption error in libxml2. By persuading a victim to open a specially crafted XML file, an attacker could exploit this vulnerability to execute arbitrary code on the system or cause a denial of service.
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113334 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-3627
DESCRIPTION:
libxml2 is vulnerable to a denial of service, caused by an error in the xmlStringGetNodeList() function when parsing xml files while in recover mode. An attacker could exploit this vulnerability to exhaust the stack and cause a segmentation fault.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111586 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-2016-3705
DESCRIPTION:
libxml2 is vulnerable to a stack-based buffer overflow, caused by an out-of-bounds read of xmlParserEntityCheck() and xmlParseAttValueComplex() functions in parser.c. By persuading a victim to open a specially crafted XML file, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/112885 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-4447
DESCRIPTION:
libxml2 is vulnerable to a denial of service, caused by a heap-based buffer overflow. By persuading a victim to open a specially crafted XML file, a remote attacker could overflow a buffer and cause the application to crash.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113522 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)

Affected Products and Versions

IBM SmartCloud Entry 2.2.0 through 2.2.0.4 Appliance fix pack 6
IBM SmartCloud Entry 2.3.0 through 2.3.0.4 Appliance fix pack 6
IBM SmartCloud Entry 2.4.0 through 2.4.0.4 Appliance fix pack 6
IBM SmartCloud Entry 3.1.0 through 3.1.0.4 Appliance fix pack 21
IBM SmartCloud Entry 3.2.0 through 3.2.0.4 Appliance fix pack 21

Workarounds and Mitigations

None

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References

Off

Change History

8 September 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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Document Information

Modified date:
18 July 2020

UID

isg3T1024194