Apple tvOS up to 9.2.1 WebKit race condition

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple tvOS up to 9.2.1. It has been classified as problematic. The affected element is an unknown function of the component WebKit. The manipulation leads to race condition. This vulnerability is listed as CVE-2016-4583. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple tvOS up to 9.2.1 (Digital Media Player) and classified as problematic. This issue affects an unknown code block of the component WebKit. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality. The summary by CVE is:

WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote attackers to bypass the Same Origin Policy and obtain image date from an unintended web site via a timing attack involving an SVG document.

The weakness was presented 07/18/2016 by Roeland Krak (Mikhail) with Mitsui Bussan Secure Directions as HT206905 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2016-4583 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. The technical details are unknown and an exploit is not publicly available. The advisory points out:

A timing issue existed in the processing of SVG. This issue was addressed through improved validation.

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 91830†). See VDB-89671, VDB-89672, VDB-89673 and VDB-89674 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

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

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Race condition
CWE: CWE-362
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: 🔍
Active Actors: 🔍
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
Researcher: Roeland Krak (Mikhail)
Organization: Mitsui Bussan Secure Directions
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4583 (🔍)
GCVE (CVE): GCVE-0-2016-4583
GCVE (VulDB): GCVE-100-89843
SecurityFocus: 91830 - Apple iOS/tvOS/Safari Multiple Security Vulnerabilities
SecurityTracker: 1036343

See also: 🔍

Entryinfo

Created: 07/19/2016 19:50
Updated: 09/06/2022 15:54
Changes: 07/19/2016 19:50 (71), 03/04/2019 08:08 (15), 09/06/2022 15:54 (4)
Complete: 🔍
Cache ID: 216::103

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