Apple Mac OS X up to 10.11.1 Hypervisor memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.9$0-$5k0.00

A vulnerability classified as critical has been found in Apple Mac OS X up to 10.11.1 (Operating System). This affects an unknown part of the component Hypervisor. 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:

Use-after-free vulnerability in Hypervisor in Apple OS X before 10.11.2 allows local users to gain privileges via vectors involving VM objects.

The weakness was released 12/08/2015 by Ian Beer (beist) with Google Project Zero as HT205637 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2015-7078 since 09/16/2015. Attacking locally is a requirement. A authentication is necessary for exploitation. Technical details are unknown but a public exploit is available. The advisory points out:

A use after free issue existed in the handling of VM objects. This issue was addressed through improved memory management.

A public exploit has been developed by Google Security Research and been published 2 months after the advisory. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 87314 (Mac OS X 10.11.x < 10.11.2 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 124389 (Apple Mac OS X v10.11.2 and Security Update 2015-008 Not Installed (APPLE-SA-2015-12-08-3)).

Upgrading to version 10.11.2 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 (87314) and Exploit-DB (39370). Entries connected to this vulnerability are available at 79541, 79545, 79546 and 79547.

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Support

  • end of life

CPE 2.3info

CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.8
VulDB Temp Score: 7.9
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CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Google Security Research
Download: 🔍

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Nessus ID: 87314
Nessus Name: Mac OS X 10.11.x < 10.11.2 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-01 December-15
OpenVAS File: 🔍
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Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Upgrade: Mac OS X 10.11.2

Timelineinfo

09/16/2015 🔍
12/08/2015 +83 days 🔍
12/08/2015 +0 days 🔍
12/08/2015 +0 days 🔍
12/09/2015 +1 days 🔍
12/10/2015 +1 days 🔍
12/10/2015 +0 days 🔍
12/11/2015 +1 days 🔍
01/28/2016 +48 days 🔍
01/28/2016 +0 days 🔍
06/29/2022 +2344 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205637
Researcher: Ian Beer (beist)
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-7078 (🔍)
SecurityTracker: 1034344
Vulnerability Center: 55088 - Apple MacOS X <10.11.2 Local Code Execution Vulnerability in Hypervisor, High
SecurityFocus: 78721 - Apple Mac OS X APPLE-SA-2015-12-08-3 Multiple Security Vulnerabilities

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 12/09/2015 14:04
Updated: 06/29/2022 12:07
Changes: 12/09/2015 14:04 (67), 05/14/2018 09:15 (22), 06/29/2022 12:07 (3)
Complete: 🔍

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