CVE-2016-1796

Apple OS X libATSServer Heap-based Buffer Overflow Remote Code Execution Vulnerability

Severity Score

3.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Apple Type Services (ATS) in Apple OS X before 10.11.5 allows attackers to obtain sensitive kernel memory-layout information or cause a denial of service (out-of-bounds memory access) via a crafted app.

Apple Type Services (ATS) en Apple OS X en versiones anteriores a 10.11.5 permite a atacantes obtener información sensible de la estructura de memoria del kernel o causar una denegación de servicio (acceso a memoria fuera de rango) a través de una app manipulada.

This vulnerability allows attackers to execute arbitrary code on vulnerable installations of Apple OS X. 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 GetUncompressedBitmapRepresentation method. The issue lies in the failure to properly validate the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute arbitrary code under the context of the user.

*Credits: lokihardt

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-01-13 CVE Reserved
2016-05-17 CVE Published
2024-06-19 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CAPEC

References (5)

URL	Tag	Source
http://www.securityfocus.com/bid/90696	Vdb Entry
http://www.securitytracker.com/id/1035895	Vdb Entry
http://www.zerodayinitiative.com/advisories/ZDI-16-361	X_refsource_misc

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.apple.com/archives/security-announce/2016/May/msg00004.html	2016-12-01
https://support.apple.com/HT206567	2016-12-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				<= 10.11.4 Search vendor "Apple" for product "Mac Os X" and version " <= 10.11.4"		-		Affected