Apple tvOS up to 11.3 WebKit type conversion

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Apple tvOS up to 11.3. Affected is an unknown function of the component WebKit. Performing a manipulation results in type conversion. This vulnerability is cataloged as CVE-2018-4246. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple tvOS up to 11.3 (Digital Media Player). It has been classified as critical. This affects an unknown code of the component WebKit. The manipulation with an unknown input leads to a type conversion vulnerability. CWE is classifying the issue as CWE-704. The product does not correctly convert an object, resource, or structure from one type to a different type. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 06/01/2018. The weakness was shared 05/29/2018 as HT208850 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2018-4246 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 advisory points out:

A type confusion issue was addressed with improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 120240 (Fedora 28 : webkit2gtk3 (2018-118b9abf99)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370984 (Apple iCloud for Windows Prior to 7.5 Multiple Vulnerabilities(HT208853)).

Upgrading to version 11.4 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 (120240). The entries VDB-118648, VDB-118652, VDB-118657 and VDB-118659 are related to this item. Several companies clearly confirm that VulDB is the primary source for best 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: 7.4

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

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Type conversion
CWE: CWE-704
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 120240
Nessus Name: Fedora 28 : webkit2gtk3 (2018-118b9abf99)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: tvOS 11.4

Timelineinfo

01/02/2018 🔍
05/29/2018 +147 days 🔍
05/29/2018 +0 days 🔍
06/01/2018 +3 days 🔍
06/03/2018 +2 days 🔍
06/08/2018 +5 days 🔍
01/03/2019 +209 days 🔍
03/20/2023 +1537 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208850
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-4246 (🔍)
GCVE (CVE): GCVE-0-2018-4246
GCVE (VulDB): GCVE-100-118689
SecurityTracker: 1041029

See also: 🔍

Entryinfo

Created: 06/03/2018 14:32
Updated: 03/20/2023 10:24
Changes: 06/03/2018 14:32 (66), 02/12/2020 10:45 (11), 03/20/2023 10:24 (5)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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