Apple macOS up to 10.14.3 file memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Apple macOS up to 10.14.3. Affected is an unknown function of the component File. Performing a manipulation results in memory corruption. This vulnerability is identified as CVE-2019-6237. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple macOS up to 10.14.3 (Operating System). It has been classified as critical. This affects some unknown functionality of the component file. 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. The summary by CVE is:

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, Safari 12.1.1, iTunes for Windows 12.9.5, iCloud for Windows 7.12. Processing maliciously crafted web content may lead to arbitrary code execution.

The bug was discovered 05/13/2019. The weakness was released 03/25/2019 by Jakub Wilk as HT209600 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2019-6237 since 01/11/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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:

An out-of-bounds read was addressed with improved bounds checking.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 371712 (Apple macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra Not Installed (APPLE-SA-2019-3-25-2)).

Upgrading to version 10.14.4 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 SecurityFocus (BID 104423†). Entries connected to this vulnerability are available at VDB-119252, VDB-132233, VDB-132234 and VDB-132235. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

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

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 10.14.4

Timelineinfo

06/07/2018 🔍
01/11/2019 +218 days 🔍
03/25/2019 +73 days 🔍
03/25/2019 +0 days 🔍
03/26/2019 +1 days 🔍
05/13/2019 +48 days 🔍
05/21/2020 +374 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT209600
Researcher: Jakub Wilk
Status: Confirmed

CVE: CVE-2019-6237 (🔍)
GCVE (CVE): GCVE-0-2019-6237
GCVE (VulDB): GCVE-100-132351
SecurityFocus: 104423 - Perl CVE-2018-12015 Directory Traversal Vulnerability

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

Entryinfo

Created: 03/26/2019 15:24
Updated: 05/21/2020 08:07
Changes: 03/26/2019 15:24 (66), 05/21/2020 08:07 (6)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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