Apple iOS up to 9.3.2 WebKit memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.6$5k-$25k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Apple iOS up to 9.3.2. This issue affects some unknown processing of the component WebKit. Such manipulation leads to memory corruption. This vulnerability is referenced as CVE-2016-4624. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS up to 9.3.2 (Smartphone Operating System). It has been rated as critical. Affected by this issue is an 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 weakness was published 07/18/2016 by Chris Vienneau (Mikhail) with Apple as HT206902 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2016-4624 since 05/11/2016. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 09/05/2022). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

Multiple memory corruption issues were addressed through improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 93264 (Fedora 23 : webkitgtk4 (2016-d957ffbac1)), 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 9.3.3 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 (93264) and SecurityFocus (BID 91830†). Similar entries are available at VDB-89671, VDB-89672, VDB-89673 and VDB-89674. 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

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: 🔍
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: 93264
Nessus Name: Fedora 23 : webkitgtk4 (2016-d957ffbac1)
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: iOS 9.3.3

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 🔍
09/02/2016 +43 days 🔍
09/05/2022 +2194 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206902
Researcher: Chris Vienneau (Mikhail)
Organization: Apple
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4624 (🔍)
GCVE (CVE): GCVE-0-2016-4624
GCVE (VulDB): GCVE-100-89720
SecurityFocus: 91830 - Apple iOS/tvOS/Safari Multiple Security Vulnerabilities
SecurityTracker: 1036343

scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 07/19/2016 16:33
Updated: 09/05/2022 15:08
Changes: 07/19/2016 16:33 (70), 03/03/2019 10:51 (15), 09/05/2022 15:08 (4)
Complete: 🔍
Cache ID: 216::103

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