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ID

VAR-201607-0303


CVE

CVE-2016-4647


TITLE

Apple OS X DspFuncLib Use-After-Free Privilege Escalation Vulnerability

Trust: 1.4

sources: ZDI: ZDI-16-438 // ZDI: ZDI-16-437

DESCRIPTION

Audio in Apple OS X before 10.11.6 allows local users to gain privileges or cause a denial of service (memory corruption) via a crafted file. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.The specific flaw exists within the handling of DspFuncLib. The issue lies in the failure to properly check function IDs before removing items from a function table. An attacker can leverage this vulnerability to escalate privileges and execute code under the context of the kernel. Apple Mac OS X is prone to multiple security vulnerabilities. Attackers can exploit these issues to execute arbitrary code, gain sensitive information, cause denial-of-service conditions, bypass security restrictions, and perform unauthorized actions. This may aid in other attacks. Apple Mac OS X 10.9.5, 10.10.5 and 10.11 through 10.11.5 are vulnerable. Audio is one of the audio components

Trust: 3.24

sources: NVD: CVE-2016-4647 // JVNDB: JVNDB-2016-004022 // ZDI: ZDI-16-438 // ZDI: ZDI-16-437 // BID: 91824 // VULHUB: VHN-93466

AFFECTED PRODUCTS

vendor:applemodel:os xscope: - version: -

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vendor:applemodel:mac os xscope:lteversion:10.11.5

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vendor:applemodel:mac os xscope:eqversion:10.11 and later

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vendor:applemodel:mac os xscope:eqversion:10.11.5

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vendor:applemodel:mac osscope:eqversion:x10.11.3

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vendor:applemodel:mac osscope:eqversion:x10.11.2

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vendor:applemodel:mac osscope:eqversion:x10.11.1

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vendor:applemodel:mac osscope:eqversion:x10.10.5

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vendor:applemodel:mac osscope:eqversion:x10.9.5

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vendor:applemodel:mac osscope:eqversion:x10.11.5

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vendor:applemodel:mac osscope:eqversion:x10.11.4

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vendor:applemodel:mac osscope:eqversion:x10.11

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vendor:applemodel:mac osscope:neversion:x10.11.6

Trust: 0.3

vendor:applemodel:mac os security updatescope:neversion:x2016

Trust: 0.3

sources: ZDI: ZDI-16-438 // ZDI: ZDI-16-437 // BID: 91824 // JVNDB: JVNDB-2016-004022 // CNNVD: CNNVD-201607-896 // NVD: CVE-2016-4647

CVSS

SEVERITY

CVSSV2

CVSSV3

ZDI: CVE-2016-4647
value: MEDIUM

Trust: 1.4

nvd@nist.gov: CVE-2016-4647
value: HIGH

Trust: 1.0

NVD: CVE-2016-4647
value: HIGH

Trust: 0.8

CNNVD: CNNVD-201607-896
value: HIGH

Trust: 0.6

VULHUB: VHN-93466
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2016-4647
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

ZDI: CVE-2016-4647
severity: MEDIUM
baseScore: 6.9
vectorString: AV:L/AC:M/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.4
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.4

VULHUB: VHN-93466
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2016-4647
baseSeverity: HIGH
baseScore: 7.8
vectorString: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 1.8
impactScore: 5.9
version: 3.0

Trust: 1.8

sources: ZDI: ZDI-16-438 // ZDI: ZDI-16-437 // VULHUB: VHN-93466 // JVNDB: JVNDB-2016-004022 // CNNVD: CNNVD-201607-896 // NVD: CVE-2016-4647

PROBLEMTYPE DATA

problemtype:CWE-119

Trust: 1.9

sources: VULHUB: VHN-93466 // JVNDB: JVNDB-2016-004022 // NVD: CVE-2016-4647

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-201607-896

TYPE

buffer overflow

Trust: 0.6

sources: CNNVD: CNNVD-201607-896

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2016-004022

PATCH
title:HT206903url:https://support.apple.com/en-us/HT206903
Trust: 2.2
title:Apple security updatesurl:https://support.apple.com/en-us/HT201222
Trust: 0.8
title:APPLE-SA-2016-07-18-1 OS X El Capitan v10.11.6 and Security Update 2016-004url:http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html
Trust: 0.8
title:HT206903url:https://support.apple.com/ja-jp/HT206903
Trust: 0.8
title:Apple OS X Audio Security vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=63256
Trust: 0.6
sources:
            
            
            ZDI: ZDI-16-438 // 
            
            
            
            ZDI: ZDI-16-437 // 
            
            
            
            JVNDB: JVNDB-2016-004022 // 
            
            
            
            CNNVD: CNNVD-201607-896

EXTERNAL IDS
db:NVDid:CVE-2016-4647
Trust: 4.2
db:ZDIid:ZDI-16-437
Trust: 2.1
db:ZDIid:ZDI-16-438
Trust: 1.8
db:BIDid:91824
Trust: 1.4
db:SECTRACKid:1036348
Trust: 1.1
db:JVNid:JVNVU94844193
Trust: 0.8
db:JVNDBid:JVNDB-2016-004022
Trust: 0.8
db:ZDI_CANid:ZDI-CAN-3694
Trust: 0.7
db:ZDI_CANid:ZDI-CAN-3693
Trust: 0.7
db:CNNVDid:CNNVD-201607-896
Trust: 0.7
db:ZDIid:ZDI-16-496
Trust: 0.3
db:ZDIid:ZDI-16-431
Trust: 0.3
db:ZDIid:ZDI-16-435
Trust: 0.3
db:VULHUBid:VHN-93466
Trust: 0.1
sources:
            
            
            ZDI: ZDI-16-438 // 
            
            
            
            ZDI: ZDI-16-437 // 
            
            
            
            VULHUB: VHN-93466 // 
            
            
            
            BID: 91824 // 
            
            
            
            JVNDB: JVNDB-2016-004022 // 
            
            
            
            CNNVD: CNNVD-201607-896 // 
            
            
            
            NVD: CVE-2016-4647

REFERENCES
url:http://lists.apple.com/archives/security-announce/2016/jul/msg00000.html
Trust: 1.7
url:https://support.apple.com/ht206903
Trust: 1.7
url:https://support.apple.com/en-us/ht206903
Trust: 1.4
url:http://www.securityfocus.com/bid/91824
Trust: 1.1
url:http://zerodayinitiative.com/advisories/zdi-16-437/
Trust: 1.1
url:http://zerodayinitiative.com/advisories/zdi-16-438/
Trust: 1.1
url:http://www.securitytracker.com/id/1036348
Trust: 1.1
url:http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-4647
Trust: 0.8
url:http://jvn.jp/vu/jvnvu94844193/index.html
Trust: 0.8
url:http://web.nvd.nist.gov/view/vuln/detail?vulnid=cve-2016-4647
Trust: 0.8
url:https://www.apple.com/
Trust: 0.3
url:http://www.apple.com/macosx/
Trust: 0.3
url:http://www.zerodayinitiative.com/advisories/zdi-16-431/
Trust: 0.3
url:http://www.zerodayinitiative.com/advisories/zdi-16-435/
Trust: 0.3
url:http://www.zerodayinitiative.com/advisories/zdi-16-437/
Trust: 0.3
url:apple os x acmp4aacbasedecoder out-of-bounds read information disclosure vulnerability
Trust: 0.3
url:http://www.zerodayinitiative.com/advisories/zdi-16-496/
Trust: 0.3
sources:
            
            
            ZDI: ZDI-16-438 // 
            
            
            
            ZDI: ZDI-16-437 // 
            
            
            
            VULHUB: VHN-93466 // 
            
            
            
            BID: 91824 // 
            
            
            
            JVNDB: JVNDB-2016-004022 // 
            
            
            
            CNNVD: CNNVD-201607-896 // 
            
            
            
            NVD: CVE-2016-4647

CREDITS
Juwei Lin of Trend Micro
Trust: 1.4
sources:
            
            
            ZDI: ZDI-16-438 // 
            
            
            
            ZDI: ZDI-16-437

SOURCES
db:ZDIid:ZDI-16-438
db:ZDIid:ZDI-16-437
db:VULHUBid:VHN-93466
db:BIDid:91824
db:JVNDBid:JVNDB-2016-004022
db:CNNVDid:CNNVD-201607-896
db:NVDid:CVE-2016-4647

LAST UPDATE DATE
2025-04-13T20:19:11.541000+00:00

SOURCES UPDATE DATE
db:ZDIid:ZDI-16-438date:2016-07-20T00:00:00
db:ZDIid:ZDI-16-437date:2016-07-20T00:00:00
db:VULHUBid:VHN-93466date:2017-09-01T00:00:00
db:BIDid:91824date:2016-08-29T19:00:00
db:JVNDBid:JVNDB-2016-004022date:2016-07-28T00:00:00
db:CNNVDid:CNNVD-201607-896date:2016-07-26T00:00:00
db:NVDid:CVE-2016-4647date:2025-04-12T10:46:40.837

SOURCES RELEASE DATE
db:ZDIid:ZDI-16-438date:2016-07-20T00:00:00
db:ZDIid:ZDI-16-437date:2016-07-20T00:00:00
db:VULHUBid:VHN-93466date:2016-07-22T00:00:00
db:BIDid:91824date:2016-07-18T00:00:00
db:JVNDBid:JVNDB-2016-004022date:2016-07-28T00:00:00
db:CNNVDid:CNNVD-201607-896date:2016-07-26T00:00:00
db:NVDid:CVE-2016-4647date:2016-07-22T03:00:05.853