Apple macOS up to 10.14.1 WindowServer memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Apple macOS up to 10.14.1. This affects an unknown function of the component WindowServer. The manipulation results in memory corruption. This vulnerability was named CVE-2018-4449. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple macOS up to 10.14.1 (Operating System). It has been classified as critical. Affected is an unknown code block of the component WindowServer. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to macOS Mojave 10.14.2.

The bug was discovered 12/05/2018. The weakness was presented 12/05/2018 by Hanqing Zhao, Yufeng Ruan and Kun Yang as HT209341 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2018-4449 since 01/02/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The advisory points out:

A memory corruption issue was addressed with improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 119841 (macOS 10.14.x < 10.14.2 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 371369 (Apple macOS Mojave 10.14.2, Security Update 2018-003 High Sierra, Security Update 2018-006 Sierra Not Installed(HT209341)).

Upgrading to version 10.14.2 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 (119841). See VDB-126171, VDB-127563, VDB-127564 and VDB-127567 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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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: 119841
Nessus Name: macOS 10.14.x < 10.14.2 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 10.14.2

Timelineinfo

01/02/2018 🔍
12/05/2018 +337 days 🔍
12/05/2018 +0 days 🔍
12/05/2018 +0 days 🔍
12/06/2018 +1 days 🔍
12/21/2018 +15 days 🔍
04/18/2020 +484 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT209341
Researcher: Hanqing Zhao, Yufeng Ruan, Kun Yang
Status: Confirmed

CVE: CVE-2018-4449 (🔍)
GCVE (CVE): GCVE-0-2018-4449
GCVE (VulDB): GCVE-100-127608
scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 12/06/2018 18:08
Updated: 04/18/2020 12:44
Changes: 12/06/2018 18:08 (68), 04/18/2020 12:44 (10)
Complete: 🔍
Cache ID: 216::103

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