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 identified as critical has been detected in Apple tvOS up to 12.1. This affects an unknown part of the component WebKit. This manipulation causes memory corruption. This vulnerability is handled as CVE-2018-4441. The attack can be initiated remotely. Additionally, an exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple tvOS up to 12.1 (Digital Media Player). It has been declared as critical. Affected by this vulnerability is some unknown functionality 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. The summary by CVE is:

A memory corruption issue was addressed with improved memory handling. 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 released 12/05/2018 by Ryan Pickren (lokihardt) with Google Project Zero as HT209342 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2018-4441 since 01/02/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available. The advisory points out:

A memory corruption issue was addressed with improved memory handling.

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 (46522), Tenable (121206) and SecurityFocus (BID 106691†). Entries connected to this vulnerability are available at VDB-127582, VDB-127574, VDB-127575 and VDB-127577. Be aware that VulDB is the high quality source for 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: 7.2

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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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

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: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

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 🔍
07/31/2024 +2017 days 🔍

Sourcesinfo

Vendor: apple.com

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

CVE: CVE-2018-4441 (🔍)
GCVE (CVE): GCVE-0-2018-4441
GCVE (VulDB): GCVE-100-127591
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: 07/31/2024 11:50
Changes: 12/06/2018 17:58 (70), 04/18/2020 11:04 (13), 07/31/2024 11:50 (24)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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