Apple tvOS up to 9.2.1 WebKit memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Apple tvOS up to 9.2.1. Affected by this vulnerability is an unknown functionality of the component WebKit. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2016-4586. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple tvOS up to 9.2.1 (Digital Media Player). It has been rated as critical. This issue affects some unknown processing of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

WebKit in Apple Safari before 9.1.2 and tvOS before 9.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

The weakness was disclosed 07/18/2016 with Apple as HT206905 as confirmed advisory (Website). The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2016-4586 since 05/11/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The advisory points out:

Multiple memory corruption issues were addressed through improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 93511 (Ubuntu 16.04 LTS : webkit2gtk vulnerabilities (USN-3079-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196576 (Ubuntu Security Notification for Webkit2gtk Vulnerabilities (USN-3079-1)).

Upgrading to version 9.2.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (93511) and SecurityFocus (BID 91827†). The entries VDB-89671, VDB-89672, VDB-89673 and VDB-89674 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 93511
Nessus Name: Ubuntu 16.04 LTS : webkit2gtk vulnerabilities (USN-3079-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 864497
OpenVAS Name: Ubuntu Update for webkit2gtk USN-3079-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: tvOS 9.2.2

Timelineinfo

05/11/2016 🔍
07/18/2016 +68 days 🔍
07/18/2016 +0 days 🔍
07/18/2016 +0 days 🔍
07/19/2016 +1 days 🔍
07/21/2016 +2 days 🔍
09/15/2016 +56 days 🔍
09/06/2022 +2182 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206905
Organization: Apple
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4586 (🔍)
GCVE (CVE): GCVE-0-2016-4586
GCVE (VulDB): GCVE-100-89837
SecurityFocus: 91827 - WebKit CVE-2016-4586 Multiple Unspecified Memory Corruption Vulnerabilities
SecurityTracker: 1036343

See also: 🔍

Entryinfo

Created: 07/19/2016 19:46
Updated: 09/06/2022 15:24
Changes: 07/19/2016 19:46 (70), 03/04/2019 07:19 (13), 09/06/2022 15:24 (3)
Complete: 🔍
Cache ID: 216:FD9:103

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