Apple iOS up to 12.0.1 WebKit memory corruption

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$5k-$25k0.00

A vulnerability classified as critical has been found in Apple iOS up to 12.0.1 (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. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 10/30/2018. The weakness was shared 10/29/2018 by lokihardt with Google Project Zero as HT209192 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2018-4382 since 01/02/2018. 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. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/08/2020). 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 with improved memory handling.

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 local. 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 vulnerability database at Tenable (118571). The entries 126195, 126164, 126165 and 126166 are related to this item.

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VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

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VulDB Base Score: 🔍
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Exploitinginfoedit

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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: 🔍

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Qualys Name: 🔍

Threat Intelligenceinfoedit

Interest: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS 12.1

Timelineinfoedit

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 🔍
04/08/2020 +525 days 🔍

Sourcesinfoedit

Vendor: https://www.apple.com/

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

CVE: CVE-2018-4382 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfoedit

Created: 10/31/2018 09:21 AM
Updated: 04/08/2020 09:35 AM
Changes: (10) vulnerability_discoverydate source_cve_assigned source_cve_nvd_summary source_nessus_id source_nessus_name source_nessus_filename source_nessus_family source_openvas_filename source_openvas_title source_openvas_family
Complete: 🔍

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