Apple iOS up to 11.2 WebKit memory corruption

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

Summaryinfo

A vulnerability was found in Apple iOS up to 11.2 and classified as critical. This impacts an unknown function of the component WebKit. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2018-4118. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS up to 11.2 (Smartphone Operating System) and classified as critical. Affected by this issue is an unknown code 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 03/29/2018. The weakness was disclosed 03/29/2018 by Jeonghoon Shin (OSS-Fuzz) with Theori as HT208693 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is handled as CVE-2018-4118 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. 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 02/06/2021). It is expected to see the exploit prices for this product increasing in the near future. 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 l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171677 (SUSE Enterprise Linux Security Update for webkit2gtk3 (SUSE-SU-2018:3387-1)).

Upgrading to version 11.3 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 (109468) and SecurityFocus (BID 102775†). The entries VDB-111120, VDB-111127, VDB-111128 and VDB-111129 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

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Website

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: 109468
Nessus Name: Ubuntu 16.04 LTS / 17.10 : webkit2gtk vulnerabilities (USN-3635-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53931
OpenVAS Name: Apple iCloud Security Updates(HT208697)-Windows
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: iOS 11.3

Timelineinfo

01/02/2018 🔍
01/23/2018 +21 days 🔍
03/29/2018 +65 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 🔍
02/06/2021 +1012 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208693
Researcher: Jeonghoon Shin (OSS-Fuzz)
Organization: Theori
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-4118 (🔍)
GCVE (CVE): GCVE-0-2018-4118
GCVE (VulDB): GCVE-100-115322
SecurityFocus: 102775 - WebKit Multiple Memory Corruption Vulnerabilities
SecurityTracker: 1040604

scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 03/31/2018 19:29
Updated: 02/06/2021 17:57
Changes: 03/31/2018 19:29 (69), 01/18/2020 19:57 (17), 02/06/2021 17:57 (3)
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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