Apple macOS up to 10.14.4 Kernel use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple macOS up to 10.14.4. It has been classified as critical. This issue affects some unknown processing of the component Kernel. Performing a manipulation results in use after free. This vulnerability was named CVE-2019-8605. The attack may be initiated remotely. In addition, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple macOS up to 10.14.4 (Operating System). It has been classified as critical. This affects an unknown code block of the component Kernel. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 05/13/2019 with Google Project Zero as HT210119 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2019-8605 since 02/18/2019. The exploitability is told to be difficult. 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. Technical details are unknown but a public exploit is available. The advisory points out:

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

The exploit is shared for download at exploit-db.com. It is declared as attacked. We expect the 0-day to have been worth approximately $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371785 (Apple macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra Not Installed (HT210119)). The CISA Known Exploited Vulnerabilities Catalog lists this issue since 06/27/2022 with a due date of 07/18/2022:

Apply updates per vendor instructions.

Upgrading to version 10.14.5 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 Exploit-DB (47409). See VDB-134839, VDB-134840, VDB-134841 and VDB-134842 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.8

VulDB Base Score: 8.3
VulDB Temp Score: 7.9
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: 🔍
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Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Download: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 10.14.5

Timelineinfo

02/18/2019 🔍
05/13/2019 +84 days 🔍
05/13/2019 +0 days 🔍
05/15/2019 +2 days 🔍
01/29/2025 +2086 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT210119
Organization: Google Project Zero
Status: Confirmed

CVE: CVE-2019-8605 (🔍)
GCVE (CVE): GCVE-0-2019-8605
GCVE (VulDB): GCVE-100-134853
scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 05/15/2019 08:51
Updated: 01/29/2025 20:46
Changes: 05/15/2019 08:51 (64), 06/10/2020 20:28 (2), 09/18/2023 11:10 (4), 04/27/2024 08:24 (25), 09/09/2024 22:30 (1), 11/24/2024 05:26 (3), 01/29/2025 20:46 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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