Apple Safari up to 9.1.1 WebKit memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.6$0-$5k0.00

A vulnerability was found in Apple Safari up to 9.1.1 (Web Browser). It has been declared as critical. This vulnerability affects an unknown code of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 07/18/2016 by Chris Vienneau (Mikhail) with Apple as HT206900 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability was named CVE-2016-4624 since 05/11/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/05/2022). The advisory points out:

Multiple memory corruption issues were addressed through improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 93139 (Fedora 24 : webkitgtk4 (2016-4728dfe3ec)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora 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 9.1.2 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 (93139) and SecurityFocus (BID 91830†).

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 93139
Nessus Name: Fedora 24 : webkitgtk4 (2016-4728dfe3ec)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802925
OpenVAS Name: Apple Safari Multiple Vulnerabilities December16 (Mac OS X)
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: Safari 9.1.2

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 🔍
08/29/2016 +39 days 🔍
09/05/2022 +2198 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206900
Researcher: Chris Vienneau (Mikhail)
Organization: Apple
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4624 (🔍)
SecurityFocus: 91830 - Apple iOS/tvOS/Safari Multiple Security Vulnerabilities
SecurityTracker: 1036343

Entryinfo

Created: 07/19/2016 04:25 PM
Updated: 09/05/2022 11:16 AM
Changes: 07/19/2016 04:25 PM (59), 03/03/2019 08:47 AM (25), 09/05/2022 11:16 AM (4)
Complete: 🔍
Cache ID: 18:5F3:40

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