Apple macOS up to 10.12.4 Kernel memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Apple macOS up to 10.12.4. Impacted is an unknown function of the component Kernel. The manipulation results in memory corruption. This vulnerability is known as CVE-2017-2494. Attacking locally is a requirement. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apple macOS up to 10.12.4 (Operating System). Affected is an unknown part of the component Kernel. 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 bug was discovered 05/10/2017. The weakness was published 05/15/2017 by Jann Horn (OSS-Fuzz) with Google Project Zero as HT207797 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is traded as CVE-2017-2494 since 12/01/2016. Local access is required to approach this attack. A authentication is necessary for exploitation. The technical details are unknown and an exploit is not available. The advisory points out:

A memory corruption issue was addressed with improved memory handling.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 100270 (macOS 10.12.x < 10.12.5 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 370396 (Apple macOS Sierra Security Update 10.12.5, El Capitan 2017-002 and Yosemite 2017-002 Not Installed (2017-002)).

Upgrading to version 10.12.5 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 (100270) and SecurityFocus (BID 98468†). Similar entries are available at VDB-101255, VDB-101256, VDB-101257 and VDB-101258. If you want to get best quality of vulnerability data, you may have to visit 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: 100270
Nessus Name: macOS 10.12.x < 10.12.5 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-HT207797
OpenVAS File: 🔍
OpenVAS Family: 🔍

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 10.12.5

Timelineinfo

12/01/2016 🔍
05/10/2017 +160 days 🔍
05/15/2017 +5 days 🔍
05/15/2017 +0 days 🔍
05/15/2017 +0 days 🔍
05/16/2017 +1 days 🔍
05/18/2017 +2 days 🔍
05/22/2017 +4 days 🔍
12/24/2020 +1312 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207797
Researcher: Jann Horn (OSS-Fuzz)
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-2494 (🔍)
GCVE (CVE): GCVE-0-2017-2494
GCVE (VulDB): GCVE-100-101370
SecurityFocus: 98468 - Apple iOS/WatchOS/tvOS/macOS Multiple Security Vulnerabilities
OSVDB: - CVE-2017-2494 - Apple - macOS - Memory Corruption Issue
SecurityTracker: 1038484

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

Entryinfo

Created: 05/16/2017 09:27
Updated: 12/24/2020 11:37
Changes: 05/16/2017 09:27 (85), 09/28/2020 16:52 (3), 12/24/2020 11:37 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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