Apple tvOS up to 12.1 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 described as critical has been identified in Apple tvOS up to 12.1. Impacted is an unknown function of the component WebKit. Executing a manipulation can lead to memory corruption. The identification of this vulnerability is CVE-2018-4438. The attack may be launched remotely. Furthermore, there is an exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Apple tvOS up to 12.1 (Digital Media Player). This vulnerability affects an unknown code block of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A logic issue existed resulting in memory corruption. This was addressed with improved state management. This issue affected versions prior to iOS 12.1.1, tvOS 12.1.1, watchOS 5.1.2, Safari 12.0.2, iTunes 12.9.2 for Windows, iCloud for Windows 7.9.

The bug was discovered 12/05/2018. The weakness was shared 12/05/2018 by Ryan Pickren (lokihardt) with Google Project Zero as HT209342 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability was named CVE-2018-4438 since 01/02/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available. The advisory points out:

A logic issue existed resulting in memory corruption. This was addressed with improved state management.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 121206 (SUSE SLED15 / SLES15 Security Update : webkit2gtk3 (SUSE-SU-2019:0092-1)), 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 371368 (Apple iTunes for Windows Prior to 12.9.2 Multiple Vulnerabilities (HT209345)).

Upgrading to version 12.1.1 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 (45984), Tenable (121206) and SecurityFocus (BID 106691†). The entries VDB-127582, VDB-127574, VDB-127575 and VDB-127577 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

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: 🔍

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 121206
Nessus Name: SUSE SLED15 / SLES15 Security Update : webkit2gtk3 (SUSE-SU-2019:0092-1)
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: tvOS 12.1.1

Timelineinfo

01/02/2018 🔍
12/05/2018 +337 days 🔍
12/05/2018 +0 days 🔍
12/05/2018 +0 days 🔍
12/06/2018 +1 days 🔍
01/16/2019 +41 days 🔍
01/22/2019 +6 days 🔍
01/23/2025 +2193 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT209342
Researcher: Ryan Pickren (lokihardt)
Organization: Google Project Zero
Status: Confirmed

CVE: CVE-2018-4438 (🔍)
GCVE (CVE): GCVE-0-2018-4438
GCVE (VulDB): GCVE-100-127594
SecurityFocus: 106691 - WebKit Multiple Security Vulnerabilities

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 12/06/2018 17:58
Updated: 01/23/2025 12:28
Changes: 12/06/2018 17:58 (70), 04/18/2020 11:24 (13), 01/23/2025 12:28 (23)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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