Apple Safari up to 11.0 WebKit memory corruption

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CVSS Meta Temp Score
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7.2$5k-$25k0.00

A vulnerability was found in Apple Safari up to 11.0 (Web Browser). It has been classified as critical. Affected is 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 03/29/2018. The weakness was presented 03/29/2018 as HT208695 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is traded as CVE-2018-4128 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. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 01/19/2020). The advisory points out:

Multiple memory corruption issues were addressed with improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 109468 (Ubuntu 16.04 LTS / 17.10 : webkit2gtk vulnerabilities (USN-3635-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370850 (Apple iTunes for Windows Prior to 12.7.4 Multiple Vulnerabilities.(HT208694)).

Upgrading to version 11.1 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 (109468). See 115296, 115301, 115302 and 115311 for similar entries.

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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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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: 109468
Nessus Name: Ubuntu 16.04 LTS / 17.10 : webkit2gtk vulnerabilities (USN-3635-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
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OpenVAS ID: 53931
OpenVAS Name: Apple iCloud Security Updates(HT208697)-Windows
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

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Upgrade: Safari 11.1

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01/02/2018 🔍
03/29/2018 +86 days 🔍
03/29/2018 +0 days 🔍
03/29/2018 +0 days 🔍
03/31/2018 +2 days 🔍
04/03/2018 +3 days 🔍
05/01/2018 +28 days 🔍
01/19/2020 +628 days 🔍

Sourcesinfoedit

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

Advisory: HT208695
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-4128 (🔍)
See also: 🔍

Entryinfoedit

Created: 03/31/2018 09:47 PM
Updated: 01/19/2020 06:02 PM
Changes: (3) vulnerability_discoverydate advisory_confirm_url source_cve_assigned
Complete: 🔍

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