Apple macOS up to 10.14.0 Hypervisor memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.1$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Apple macOS up to 10.14.0. This affects an unknown part of the component Hypervisor. The manipulation leads to memory corruption. This vulnerability is listed as CVE-2018-4242. The attack must be carried out locally. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple macOS up to 10.14.0 (Operating System) and classified as critical. This issue affects some unknown processing of the component Hypervisor. The manipulation with an unknown input leads to a memory corruption vulnerability. 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, integrity, and availability.

The bug was discovered 06/01/2018. The weakness was presented 10/29/2018 with Qihoo 360 as HT209193 as confirmed advisory (Website). The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2018-4242 since 01/02/2018. An attack has to be approached locally. Required for exploitation is a simple authentication. Neither technical details nor an exploit are publicly available. The advisory points out:

A memory corruption vulnerability was addressed with improved locking.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 118573 (macOS and Mac OS X Multiple Vulnerabilities (Security Update 2018-005)), 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 l. 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 10.14.1 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 (118573). See VDB-118673, VDB-118642, VDB-118643 and VDB-118645 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: 8.3
VulDB Meta Temp Score: 8.1

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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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: 118573
Nessus Name: macOS and Mac OS X Multiple Vulnerabilities (Security Update 2018-005)
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 10.14.1

Timelineinfo

01/02/2018 🔍
06/01/2018 +150 days 🔍
06/08/2018 +7 days 🔍
10/29/2018 +143 days 🔍
10/29/2018 +0 days 🔍
10/31/2018 +1 days 🔍
10/31/2018 +0 days 🔍
06/03/2023 +1676 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT209193
Organization: Qihoo 360
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-4242 (🔍)
GCVE (CVE): GCVE-0-2018-4242
GCVE (VulDB): GCVE-100-126293
SecurityTracker: 1041027

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

Entryinfo

Created: 10/31/2018 10:14
Updated: 06/03/2023 16:16
Changes: 10/31/2018 10:14 (77), 04/08/2020 18:45 (3), 06/03/2023 16:16 (5)
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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