Apple Safari up to 9.1.1 WebKit memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Apple Safari up to 9.1.1. Affected by this vulnerability is an unknown functionality of the component WebKit. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2016-4622. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple Safari up to 9.1.1 (Web Browser) and classified as critical. Affected by this issue is some unknown functionality 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 bug was discovered 07/21/2016. The weakness was disclosed 07/18/2016 by Samuel Gross (Mikhail) with Trend Micro as HT206900 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2016-4622 since 05/11/2016. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit 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 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†). The entries VDB-89671, VDB-89673, VDB-89674 and VDB-89675 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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: 🔍

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: 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 🔍
07/21/2016 +0 days 🔍
08/29/2016 +39 days 🔍
09/05/2022 +2198 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206900
Researcher: Samuel Gross (Mikhail)
Organization: Trend Micro
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4622 (🔍)
GCVE (CVE): GCVE-0-2016-4622
GCVE (VulDB): GCVE-100-89672
SecurityFocus: 91830 - Apple iOS/tvOS/Safari Multiple Security Vulnerabilities
SecurityTracker: 1036343

See also: 🔍

Entryinfo

Created: 07/19/2016 16:25
Updated: 09/05/2022 11:04
Changes: 07/19/2016 16:25 (69), 08/21/2019 21:48 (17), 09/05/2022 11:04 (4)
Complete: 🔍
Cache ID: 216:0D3:103

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