Apple Mac OS X up to 10.11.5 libxml2 out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple Mac OS X up to 10.11.5. The affected element is an unknown function of the component libxml2. This manipulation causes out-of-bounds. This vulnerability is registered as CVE-2016-4483. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple Mac OS X up to 10.11.5 (Operating System). It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component libxml2. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 07/18/2016 by Gustavo Grieco as HT206903 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2016-4483 since 05/04/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The advisory points out:

Multiple memory corruption issues were addressed through improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 92494 (Apple TV < 9.2.2 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168916 (OpenSuSE Security Update for libxml2 (openSUSE-SU-2016:1594-1)).

Upgrading to version 10.11.6 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 (92494) and SecurityFocus (BID 90013†). Similar entries are available at VDB-87473, VDB-87474, VDB-87475 and VDB-87476. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Support

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / 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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Nessus ID: 92494
Nessus Name: Apple TV < 9.2.2 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703593
OpenVAS Name: Debian Security Advisory DSA 3593-1 (libxml2 - security update)
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: Mac OS X 10.11.6
Patch: git.gnome.org

Timelineinfo

05/03/2016 🔍
05/04/2016 +1 days 🔍
07/18/2016 +75 days 🔍
07/18/2016 +0 days 🔍
07/19/2016 +1 days 🔍
07/21/2016 +2 days 🔍
04/11/2017 +264 days 🔍
09/06/2022 +1974 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206903
Researcher: Gustavo Grieco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4483 (🔍)
GCVE (CVE): GCVE-0-2016-4483
GCVE (VulDB): GCVE-100-89755

OVAL: 🔍

SecurityFocus: 90013 - Libxml2 'xmlsave.c' Denial of Service Vulnerability
SecurityTracker: 1036348

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

Entryinfo

Created: 07/19/2016 19:24
Updated: 09/06/2022 09:07
Changes: 07/19/2016 19:24 (71), 03/03/2019 11:17 (12), 09/06/2022 09:07 (6)
Complete: 🔍
Cache ID: 216:AEB:103

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