VDB-97132 · CVE-2016-7580 · BID 94434

Apple macOS up to 10.11.x Mail input validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Apple macOS up to 10.11.x. This affects an unknown part of the component Mail. Executing a manipulation can lead to input validation. This vulnerability is tracked as CVE-2016-7580. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Apple macOS up to 10.11.x (Operating System) and classified as problematic. This vulnerability affects an unknown function of the component Mail. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

An issue was discovered in certain Apple products. macOS before 10.12 is affected. The issue involves the "Mail" component, which allows remote web servers to cause a denial of service via a crafted URL.

The bug was discovered 12/01/2016. The weakness was disclosed 02/20/2017 (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2016-7580 since 09/09/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 81 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 10.12 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 94434†). The entries VDB-92040, VDB-92057, VDB-92058 and VDB-92060 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Operating System

Vendor

Apple

Name

macOS

Version

License

commercial

Website

Vendor: https://www.apple.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: macOS 10.12

Timelineinfo

09/09/2016 🔍
11/14/2016 +66 days 🔍
12/01/2016 +17 days 🔍
02/20/2017 +81 days 🔍
02/20/2017 +0 days 🔍
02/20/2017 +0 days 🔍
08/16/2020 +1273 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-7580 (🔍)
GCVE (CVE): GCVE-0-2016-7580
GCVE (VulDB): GCVE-100-97132
SecurityFocus: 94434 - Apple macOS CVE-2016-7580 Denial of Service Vulnerability
OSVDB: - CVE-2016-7580 - Apple - macOS - Denial of Service Issue

scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 02/20/2017 15:01
Updated: 08/16/2020 08:16
Changes: 02/20/2017 15:01 (65), 08/16/2020 08:16 (3)
Complete: 🔍
Cache ID: 216::103