Vulnerability CVE-2016-1761

Vulnerability Name:

CVE-2016-1761 (CCN-111669)

Assigned:

2016-03-21

Published:

2016-03-21

Updated:

2016-12-03

Summary:

libxml2 in Apple iOS before 9.3, OS X before 10.11.4, and watchOS before 2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted XML document.

CVSS v3 Severity:

9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

6.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)
5.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): Low Availibility (A): Low

CVSS v2 Severity:

10.0 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

6.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

Vulnerability Type:

CWE-119

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2016-1761

Source: APPLE
Type: Vendor Advisory
APPLE-SA-2016-03-21-1

Source: APPLE
Type: Vendor Advisory
APPLE-SA-2016-03-21-2

Source: APPLE
Type: Vendor Advisory
APPLE-SA-2016-03-21-5

Source: SECTRACK
Type: UNKNOWN
1035353

Source: MISC
Type: UNKNOWN
http://www.zerodayinitiative.com/advisories/ZDI-16-203

Source: XF
Type: UNKNOWN
apple-macosx-cve20161761-code-exec(111669)

Source: CCN
Type: Apple Web site
About the security content of OS X El Capitan v10.11.4 and Security Update 2016-002

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT206166

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT206167

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT206168

Source: CCN
Type: ZDI-16-203
Apple OS X XML Double Free Remote Code Execution Vulnerability

Vulnerable Configuration:

Configuration 1:

cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version <= 9.2.1)

OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version <= 10.11.3)

OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version <= 2.1)

Configuration CCN 1:

cpe:/o:apple:ios:9.2:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.precise:def:20161761000	V	CVE-2016-1761 on Ubuntu 12.04 LTS (precise) - medium.	2016-03-23
oval:com.ubuntu.trusty:def:20161761000	V	CVE-2016-1761 on Ubuntu 14.04 LTS (trusty) - medium.	2016-03-23
oval:com.ubuntu.xenial:def:20161761000	V	CVE-2016-1761 on Ubuntu 16.04 LTS (xenial) - medium.	2016-03-23
oval:com.ubuntu.xenial:def:201617610000000	V	CVE-2016-1761 on Ubuntu 16.04 LTS (xenial) - medium.	2016-03-23

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