Apple iOS up to 10.3.2 WebKit memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple iOS up to 10.3.2. It has been rated as critical. This affects an unknown part of the component WebKit. Performing a manipulation results in memory corruption. This vulnerability is cataloged as CVE-2017-7056. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in Apple iOS up to 10.3.2 (Smartphone Operating System). This affects an unknown function of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 07/19/2017. The weakness was shared 07/19/2017 by Zhiyang Zeng (lokihardt) with Google Project Zero as HT207923 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2017-7056 since 03/17/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available. The advisory points out:

Multiple memory corruption issues were addressed with improved memory handling.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $100k and more. The vulnerability scanner Nessus provides a plugin with the ID 101956 (Apple iTunes < 12.6.2 Multiple Vulnerabilities (macOS) (credentialed check)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196868 (Ubuntu Security Notification for Webkit2gtk Vulnerabilities (USN-3376-1)).

Upgrading to version 10.3.3 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 Exploit-DB (42376), Tenable (101956) and SecurityFocus (BID 99885†). The entries VDB-104146, VDB-104147, VDB-104143 and VDB-104145 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
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: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 101956
Nessus Name: Apple iTunes < 12.6.2 Multiple Vulnerabilities (macOS) (credentialed check)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802225
OpenVAS Name: Apple iCloud Multiple Vulnerabilities-HT207921 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS 10.3.3

Timelineinfo

03/17/2017 🔍
07/19/2017 +124 days 🔍
07/19/2017 +0 days 🔍
07/19/2017 +0 days 🔍
07/20/2017 +0 days 🔍
07/20/2017 +0 days 🔍
07/20/2017 +0 days 🔍
07/25/2017 +5 days 🔍
06/02/2025 +2869 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207923
Researcher: Zhiyang Zeng (lokihardt)
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-7056 (🔍)
GCVE (CVE): GCVE-0-2017-7056
GCVE (VulDB): GCVE-100-104139
SecurityFocus: 99885 - WebKit Multiple Memory Corruption Vulnerabilities
SecurityTracker: 1038950

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

Entryinfo

Created: 07/20/2017 15:00
Updated: 06/02/2025 05:54
Changes: 07/20/2017 15:00 (80), 10/29/2019 17:20 (10), 01/04/2021 16:10 (3), 06/02/2025 05:54 (15)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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