Apple iOS up to 12.1.4 Kernel Kernel Memory initialization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k0.00

A vulnerability, which was classified as problematic, was found in Apple iOS up to 12.1.4 (Smartphone Operating System). This affects an unknown code block of the component Kernel. The manipulation with an unknown input leads to a initialization vulnerability (Kernel Memory). CWE is classifying the issue as CWE-665. The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. This is going to have an impact on confidentiality.

The bug was discovered 03/25/2019. The weakness was shared 03/25/2019 with Qihoo 360 as HT209599 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2019-8540 since 02/18/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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 $0-$5k at the moment (estimation calculated on 06/09/2024). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

A memory initialization issue was addressed with improved memory handling.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 371712 (Apple macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra Not Installed (APPLE-SA-2019-3-25-2)).

Upgrading to version 12.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Name: Kernel Memory
Class: Initialization / Kernel Memory
CWE: CWE-665
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: iOS 12.2

Timelineinfo

02/18/2019 🔍
03/25/2019 +35 days 🔍
03/25/2019 +0 days 🔍
03/25/2019 +0 days 🔍
03/26/2019 +1 days 🔍
06/09/2024 +1902 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT209599
Organization: Qihoo 360
Status: Confirmed

CVE: CVE-2019-8540 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 03/26/2019 02:39 PM
Updated: 06/09/2024 10:05 AM
Changes: 03/26/2019 02:39 PM (63), 05/20/2020 10:53 AM (3), 08/07/2023 02:04 PM (4), 06/09/2024 10:05 AM (16)
Complete: 🔍
Cache ID: 98:E57:40

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