Apple tvOS up to 11.3 WebKit memory corruption

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

Summaryinfo

A vulnerability labeled as critical has been found in Apple tvOS up to 11.3. This impacts an unknown function of the component WebKit. Such manipulation leads to memory corruption. This vulnerability is listed as CVE-2018-4204. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Apple tvOS up to 11.3 (Digital Media Player) and classified as critical. Affected by this issue is an unknown part of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The bug was discovered 04/24/2018. The weakness was presented 05/29/2018 by Richard Zhu with Zero Day Initiative as HT208850 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2018-4204 since 01/02/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The advisory points out:

A memory corruption issue was addressed with improved memory handling.

The vulnerability was handled as a non-public zero-day exploit for at least 35 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 118453 (openSUSE Security Update : webkit2gtk3 (openSUSE-2018-1288)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371357 (Apple Safari Multiple Vulnerabilities (HT208741)).

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 databases at Tenable (118453) and SecurityFocus (BID 103961†). See VDB-115325, VDB-115354, VDB-115379 and VDB-115397 for similar entries. 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: 7.4

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: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: 118453
Nessus Name: openSUSE Security Update : webkit2gtk3 (openSUSE-2018-1288)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 58847
OpenVAS Name: Apple Safari Security Updates(HT208741)
OpenVAS File: 🔍
OpenVAS Family: 🔍

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 🔍
04/24/2018 +112 days 🔍
05/29/2018 +35 days 🔍
05/29/2018 +0 days 🔍
06/03/2018 +5 days 🔍
06/08/2018 +5 days 🔍
10/26/2018 +140 days 🔍
03/20/2023 +1606 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208850
Researcher: Richard Zhu
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-4204 (🔍)
GCVE (CVE): GCVE-0-2018-4204
GCVE (VulDB): GCVE-100-118688
SecurityFocus: 103961
SecurityTracker: 1040743

See also: 🔍

Entryinfo

Created: 06/03/2018 14:32
Updated: 03/20/2023 10:19
Changes: 06/03/2018 14:32 (70), 02/12/2020 10:41 (12), 03/20/2023 10:19 (5)
Complete: 🔍
Cache ID: 216::103

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