Apple Mac OS X up to 10.11.4 libxml2 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.1$0-$5k0.00

A vulnerability, which was classified as very critical, was found in Apple Mac OS X up to 10.11.4 (Operating System). Affected is some unknown functionality of the component libxml2. 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 weakness was shared 05/16/2016 by Kostya Serebryany (Basti) with Apple as HT206567 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is traded as CVE-2016-1834 since 01/13/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/21/2022). The advisory points out:

Multiple memory corruption issues were addressed through improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 93154 (SUSE SLES11 Security Update : libxml2 (SUSE-SU-2016:1604-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. 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 10.11.5 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 (93154). The entries 80763, 81414, 81506 and 82319 are related to this item.

Productinfo

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Support

  • end of life

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 9.1

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
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: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 93154
Nessus Name: SUSE SLES11 Security Update : libxml2 (SUSE-SU-2016:1604-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: alas-2016-719
OpenVAS File: 🔍
OpenVAS Family: 🔍

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: Mac OS X 10.11.5
Patch: git.gnome.org

Timelineinfo

01/13/2016 🔍
05/16/2016 +124 days 🔍
05/16/2016 +0 days 🔍
05/16/2016 +0 days 🔍
05/18/2016 +2 days 🔍
05/20/2016 +2 days 🔍
08/29/2016 +101 days 🔍
08/21/2022 +2183 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206567
Researcher: Kostya Serebryany (Basti)
Organization: Apple
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-1834 (🔍)
OVAL: 🔍

SecurityTracker: 1035890
SecurityFocus: 90691 - Apple Mac OS X/watchOS/iOS/tvOS Multiple Security Vulnerabilities

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

Entryinfo

Created: 05/18/2016 11:53
Updated: 08/21/2022 07:09
Changes: 05/18/2016 11:53 (59), 12/01/2018 23:44 (26), 08/21/2022 07:09 (5)
Complete: 🔍

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