Apple iOS up to 12.3.2 WebKit memory corruption

A vulnerability has been found in Apple iOS up to 12.3.2 (Smartphone Operating System) and classified as critical. Affected by this vulnerability is an 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. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 07/22/2019 by Jeonghoon Shin with KnownSec as HT210346 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2019-8678. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $25k-$100k at the moment (estimation calculated on 07/24/2019). 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.

Upgrading to version 12.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Similar entries are available at 138593, 138615, 138648 and 138659.

Type

• Smartphone Operating System

Vendor

• Apple

Name

• iOS

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VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Memory corruption (CWE-119)
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍Recommended: Upgrade
Status: 🔍

Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒

Upgrade: iOS 12.4

07/22/2019 Advisory disclosed
07/22/2019 +0 days Countermeasure disclosed
07/24/2019 +2 days VulDB entry created
07/24/2019 +0 days VulDB last updateVendor: apple.com

Advisory: HT210346
Researcher: Jeonghoon Shin
Organization: KnownSec
Status: Confirmed

CVE: CVE-2019-8678 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔒

Created: 07/24/2019 04:06 PM
Complete: 🔍

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