Apple iOS up to 12.0.1 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 labeled as critical has been found in Apple iOS up to 12.0.1. Affected by this vulnerability is an unknown functionality of the component WebKit. The manipulation results in memory corruption. This vulnerability is reported as CVE-2018-4416. The attack can be launched remotely. Moreover, an exploit is present. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apple iOS up to 12.0.1 (Smartphone Operating System). Affected is an unknown part 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. CVE summarizes:

Multiple memory corruption issues were addressed with improved memory handling. This issue affected versions prior to iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, iCloud for Windows 7.8.

The bug was discovered 10/30/2018. The weakness was disclosed 10/29/2018 by lokihardt with Google Project Zero as HT209192 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2018-4416 since 01/02/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. 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. As 0-day the estimated underground price was around $100k and more. The vulnerability scanner Nessus provides a plugin with the ID 118571 (macOS : Apple Safari < 12.0.1 Multiple Vulnerabilities), 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 371294 (Apple iTunes for Windows Prior to 12.9.1 Multiple Vulnerabilities (HT209197)).

Upgrading to version 12.1 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 (45910) and Tenable (118571). The entries VDB-126195, VDB-126164, VDB-126165 and VDB-126166 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

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: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 118571
Nessus Name: macOS : Apple Safari < 12.0.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS 12.1

Timelineinfo

01/02/2018 🔍
10/29/2018 +300 days 🔍
10/29/2018 +0 days 🔍
10/30/2018 +0 days 🔍
10/31/2018 +1 days 🔍
10/31/2018 +0 days 🔍
01/25/2025 +2278 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT209192
Researcher: lokihardt
Organization: Google Project Zero
Status: Confirmed

CVE: CVE-2018-4416 (🔍)
GCVE (CVE): GCVE-0-2018-4416
GCVE (VulDB): GCVE-100-126192
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 10/31/2018 09:22
Updated: 01/25/2025 05:38
Changes: 10/31/2018 09:22 (69), 04/08/2020 09:57 (10), 01/25/2025 05:38 (23)
Complete: 🔍
Cache ID: 216::103

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