Apple macOS up to 10.14.0 Hypervisor information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.6$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Apple macOS up to 10.14.0. Affected by this issue is some unknown functionality of the component Hypervisor. Executing a manipulation can lead to information disclosure. This vulnerability is tracked as CVE-2018-3646. The attack is restricted to local execution. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Apple macOS up to 10.14.0 (Operating System) and classified as problematic. This vulnerability affects an unknown code block of the component Hypervisor. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality.

The bug was discovered 08/14/2018. The weakness was disclosed 10/29/2018 with University of Michigan as HT209193 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2018-3646 since 12/28/2017. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592. The advisory points out:

An information disclosure issue was addressed by flushing the L1 data cache at the virtual machine entry.

The vulnerability scanner Nessus provides a plugin with the ID 112026 (RHEL 7 : Virtualization (RHSA-2018:2402) (Foreshadow)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171690 (SUSE Enterprise Linux Security Update for xen (SUSE-SU-2018:3490-1)).

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 databases at Tenable (112026) and SecurityFocus (BID 105080†). The entries VDB-122692, VDB-122822, VDB-122908 and VDB-122909 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.6

VulDB Base Score: 2.8
VulDB Temp Score: 2.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.6
NVD Vector: 🔍

ADP CISA Base Score: 5.6
ADP CISA Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 112026
Nessus Name: RHEL 7 : Virtualization (RHSA-2018:2402) (Foreshadow)
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

12/28/2017 🔍
08/14/2018 +229 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/21/2018 +7 days 🔍
10/29/2018 +69 days 🔍
10/29/2018 +0 days 🔍
10/31/2018 +1 days 🔍
05/30/2026 +2768 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT209193
Organization: University of Michigan
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-3646 (🔍)
GCVE (CVE): GCVE-0-2018-3646
GCVE (VulDB): GCVE-100-126292

OVAL: 🔍

CERT: 🔍
SecurityFocus: 105080 - Multiple Intel Processors Side Channel Attack Multiple Information Disclosure Vulnerabilities
SecurityTracker: 1041451

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

Entryinfo

Created: 10/31/2018 10:13
Updated: 05/30/2026 04:19
Changes: 10/31/2018 10:13 (80), 04/08/2020 18:55 (5), 06/03/2023 16:09 (5), 02/01/2025 18:07 (15), 05/30/2026 04:19 (12)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!