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 has been found in Apple iOS up to 11.2 and classified as critical. This affects an unknown function of the component WebKit. This manipulation causes memory corruption. This vulnerability is handled as CVE-2018-4114. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Apple iOS up to 11.2 (Smartphone Operating System) and classified as critical. Affected by this vulnerability is an unknown part 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 bug was discovered 03/29/2018. The weakness was released 03/29/2018 by Jeonghoon Shin (OSS-Fuzz) with Theori as HT208693 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2018-4114 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. Neither technical details nor an exploit are publicly available. The price for an exploit might be around 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†). Entries connected to this vulnerability are available at VDB-111120, VDB-111127, VDB-111128 and VDB-111129. 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: 🔍
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-2018-4114 (🔍)
GCVE (CVE): GCVE-0-2018-4114
GCVE (VulDB): GCVE-100-115321
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 17:53
Changes: 03/31/2018 19:29 (69), 01/18/2020 19:48 (17), 02/06/2021 17:53 (3)
Complete: 🔍
Cache ID: 216::103

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

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