Apple macOS up to 10.14.3 Security use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in Apple macOS up to 10.14.3 and classified as critical. Affected is an unknown function of the component Security. This manipulation causes use after free. This vulnerability appears as CVE-2019-8526. The attack may be initiated remotely. In addition, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Apple macOS up to 10.14.3 (Operating System). Affected by this vulnerability is an unknown part of the component Security. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Mojave 10.14.4. An application may be able to gain elevated privileges.

The bug was discovered 03/25/2019. The weakness was presented 03/25/2019 as HT209600 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2019-8526 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. Technical details are unknown but an exploit is available. The advisory points out:

A use after free issue was addressed with improved memory management.

It is declared as attacked. 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)). The CISA Known Exploited Vulnerabilities Catalog lists this issue since 04/17/2023 with a due date of 05/08/2023:

Apply updates per vendor instructions.

Upgrading to version 10.14.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

See VDB-132341, VDB-132342, VDB-132343 and VDB-132344 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

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

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.8
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

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 🔍
01/29/2025 +2136 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT209600
Status: Confirmed

CVE: CVE-2019-8526 (🔍)
GCVE (CVE): GCVE-0-2019-8526
GCVE (VulDB): GCVE-100-132373
scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 03/26/2019 15:31
Updated: 01/29/2025 20:46
Changes: 03/26/2019 15:31 (62), 05/21/2020 09:51 (3), 04/28/2024 13:53 (29), 06/10/2024 18:28 (2), 09/09/2024 22:30 (1), 01/29/2025 20:46 (12)
Complete: 🔍
Cache ID: 216::103

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