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. Affected is an unknown function of the component WebKit. This manipulation causes memory corruption. This vulnerability is registered as CVE-2017-7018. Remote exploitation of the attack is possible. Furthermore, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Apple iOS up to 10.3.2 (Smartphone Operating System) and classified as critical. Affected by this vulnerability is an unknown function 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 bug was discovered 07/19/2017. The weakness was published 07/19/2017 by Zhiyang Zeng (lokihardt) with Google Project Zero as HT207923 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2017-7018 since 03/17/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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.

It is possible to download the exploit 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 370477 (Apple iTunes Prior to 12.6.2 Multiple Memory Currption Vulnerabilities. (APPLE-SA-2017-07-19-6)).

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 (42373), Tenable (101956) and SecurityFocus (BID 99885†). Similar entries are available at VDB-104146, VDB-104147, VDB-104143 and VDB-104145. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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CPE 2.3info

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CVSSv4info

VulDB Vector: 🔍
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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
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CVSSv2info

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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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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

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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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 +1 days 🔍
07/20/2017 +0 days 🔍
07/20/2017 +0 days 🔍
07/25/2017 +5 days 🔍
06/08/2025 +2875 days 🔍

Sourcesinfo

Vendor: apple.com

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

CVE: CVE-2017-7018 (🔍)
GCVE (CVE): GCVE-0-2017-7018
GCVE (VulDB): GCVE-100-104125
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 15:08
Updated: 06/08/2025 13:51
Changes: 07/20/2017 15:08 (70), 10/29/2019 16:06 (20), 01/04/2021 15:07 (3), 06/08/2025 13:51 (15)
Complete: 🔍
Cache ID: 216::103

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