Apple macOS up to 10.14.3 IOKit Kernel Memory memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Apple macOS up to 10.14.3. This issue affects some unknown processing of the component IOKit. Such manipulation leads to memory corruption (Kernel Memory). This vulnerability is documented as CVE-2019-8504. The attack needs to be performed locally. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Apple macOS up to 10.14.3 (Operating System). Affected by this issue is an unknown function of the component IOKit. The manipulation with an unknown input leads to a memory corruption vulnerability (Kernel Memory). 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.

The bug was discovered 03/25/2019. The weakness was released 03/25/2019 by Jakub Wilk as HT209600 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2019-8504 since 02/18/2019. The attack needs to be approached locally. The successful exploitation requires a simple authentication. There are neither technical details nor an exploit 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.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 104423†). Entries connected to this vulnerability are available at VDB-119252, VDB-132233, VDB-132234 and VDB-132235. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
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: Memory corruption / Kernel Memory
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

06/07/2018 🔍
02/18/2019 +256 days 🔍
03/25/2019 +35 days 🔍
03/25/2019 +0 days 🔍
03/25/2019 +0 days 🔍
03/26/2019 +1 days 🔍
08/08/2023 +1596 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT209600
Researcher: Jakub Wilk
Status: Confirmed

CVE: CVE-2019-8504 (🔍)
GCVE (CVE): GCVE-0-2019-8504
GCVE (VulDB): GCVE-100-132356
SecurityFocus: 104423 - Perl CVE-2018-12015 Directory Traversal Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 03/26/2019 15:25
Updated: 08/08/2023 08:59
Changes: 03/26/2019 15:25 (67), 05/21/2020 09:14 (6), 08/08/2023 08:59 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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