Apple macOS up to 10.13.5 Hypervisor memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple macOS up to 10.13.5. Impacted is an unknown function of the component Hypervisor. This manipulation causes memory corruption. This vulnerability is handled as CVE-2018-4242. It is possible to launch the attack on the local host. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apple macOS up to 10.13.5 (Operating System) and classified as critical. Affected by this vulnerability is an unknown functionality of the component Hypervisor. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

The bug was discovered 06/01/2018. The weakness was released 06/01/2018 with Qihoo 360 as HT208849 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2018-4242 since 01/02/2018. 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. The technical details are unknown and an exploit is not publicly available. The advisory points out:

A memory corruption vulnerability was addressed with improved locking.

The vulnerability scanner Nessus provides a plugin with the ID 110324 (macOS 10.13.x < 10.13.5 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370985 (Apple macOS High Sierra 10.13.5, Security Update 2018-003 Sierra, Security Update 2018-003 El Capitan Not Installed).

Upgrading to version 10.13.5 2018-003 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 Tenable (110324). Entries connected to this vulnerability are available at VDB-118673, VDB-118642, VDB-118643 and VDB-118644. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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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Nessus ID: 110324
Nessus Name: macOS 10.13.x < 10.13.5 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

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 10.13.5 2018-003

Timelineinfo

01/02/2018 🔍
06/01/2018 +150 days 🔍
06/01/2018 +0 days 🔍
06/01/2018 +0 days 🔍
06/03/2018 +2 days 🔍
06/05/2018 +2 days 🔍
06/08/2018 +2 days 🔍
03/19/2023 +1745 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208849
Organization: Qihoo 360
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-4242 (🔍)
GCVE (CVE): GCVE-0-2018-4242
GCVE (VulDB): GCVE-100-118651
SecurityFocus: 103204
SecurityTracker: 1041027

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

Entryinfo

Created: 06/03/2018 14:14
Updated: 03/19/2023 15:46
Changes: 06/03/2018 14:14 (76), 02/12/2020 07:52 (3), 03/19/2023 15:41 (5), 03/19/2023 15:46 (1)
Complete: 🔍
Cache ID: 216:2A3:103

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

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