Apple macOS up to 10.14.5 Carbon Core use after free

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple macOS up to 10.14.5. It has been classified as critical. The impacted element is an unknown function of the component Carbon Core. The manipulation leads to use after free. This vulnerability is listed as CVE-2019-8661. 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 10.14.5 (Operating System). It has been rated as critical. This issue affects an unknown code block of the component Carbon Core. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is 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 10.14.6. A remote attacker may be able to cause arbitrary code execution.

The weakness was presented 07/22/2019 by Natalie Silvanovich with Google Project Zero as HT210348 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2019-8661 since 02/18/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. 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 available at packetstormsecurity.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k.

Upgrading to version 10.14.6 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 (47207). See VDB-138560, VDB-138561, VDB-138562 and VDB-138564 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.2

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD 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: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 10.14.6

Timelineinfo

02/18/2019 🔍
07/22/2019 +154 days 🔍
07/22/2019 +0 days 🔍
07/24/2019 +2 days 🔍
01/05/2025 +1992 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT210348
Researcher: Natalie Silvanovich
Organization: Google Project Zero
Status: Confirmed

CVE: CVE-2019-8661 (🔍)
GCVE (CVE): GCVE-0-2019-8661
GCVE (VulDB): GCVE-100-138563
scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 07/24/2019 15:11
Updated: 01/05/2025 12:43
Changes: 07/24/2019 15:11 (65), 07/10/2020 16:13 (1), 06/17/2024 10:14 (23), 01/05/2025 12:43 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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