Apple macOS up to 10.14.3 Kernel Kernel Memory initialization

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple macOS up to 10.14.3. It has been classified as problematic. This impacts an unknown function of the component Kernel. This manipulation causes initialization (Kernel Memory). This vulnerability is handled as CVE-2019-8540. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple macOS up to 10.14.3 (Operating System). It has been declared as problematic. Affected by this vulnerability is an unknown code block of the component Kernel. The manipulation with an unknown input leads to a initialization vulnerability (Kernel Memory). The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality. The summary by CVE is:

A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 12.2, macOS Mojave 10.14.4, tvOS 12.2, watchOS 5.2. A malicious application may be able to determine kernel memory layout.

The bug was discovered 03/25/2019. The weakness was released 03/25/2019 with Qihoo 360 as HT209600 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2019-8540 since 02/18/2019. 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 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 10.14.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Entries connected to this vulnerability are available at VDB-132249, VDB-132293, VDB-132341 and VDB-132342. 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: 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: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 10.14.4

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: HT209600
Organization: Qihoo 360
Status: Confirmed

CVE: CVE-2019-8540 (🔍)
GCVE (CVE): GCVE-0-2019-8540
GCVE (VulDB): GCVE-100-132361
scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 03/26/2019 15:26
Updated: 06/09/2024 15:04
Changes: 03/26/2019 15:26 (64), 05/21/2020 09:25 (3), 06/09/2024 15:04 (19)
Complete: 🔍
Cache ID: 216::103

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

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