Apple Mac OS X up to 10.11.5 OpenSSL numeric error

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

Summaryinfo

A vulnerability was found in Apple Mac OS X up to 10.11.5 and classified as critical. Affected by this issue is some unknown functionality of the component OpenSSL. The manipulation results in numeric error. This vulnerability is reported as CVE-2016-2106. The attack can be launched remotely. No exploit exists. It is suggested 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 classified as critical. Affected is an unknown code of the component OpenSSL. The manipulation with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Integer overflow in the EVP_EncryptUpdate function in crypto/evp/evp_enc.c in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h allows remote attackers to cause a denial of service (heap memory corruption) via a large amount of data.

The weakness was disclosed 07/18/2016 by Guido Vranken as HT206903 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2016-2106. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The advisory points out:

Multiple issues existed in OpenSSL. These issues were resolved by backporting the fixes from OpenSSL 1.0.2h/1.0.1 to OpenSSL 0.9.8.

The vulnerability scanner Nessus provides a plugin with the ID 93118 (RHEL 7 : JBoss Web Server (RHSA-2016:1648) (httpoxy)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196457 (Ubuntu Security Notification for Openssl Vulnerabilities (USN-2959-1)).

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 (93118) and SecurityFocus (BID 89744†). The entries VDB-83254, VDB-83255, VDB-83256 and VDB-83257 are pretty similar. Once again VulDB remains the best 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: 7.5
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: Numeric error
CWE: CWE-189
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: 93118
Nessus Name: RHEL 7 : JBoss Web Server (RHSA-2016:1648) (httpoxy)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: alas-2016-695
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: Mac OS X 10.11.6
Patch: 3f3582139fbb259a1c3cbb0a25236500a409bf26

Timelineinfo

01/29/2016 🔍
05/03/2016 +95 days 🔍
05/04/2016 +0 days 🔍
07/18/2016 +75 days 🔍
07/18/2016 +0 days 🔍
07/19/2016 +1 days 🔍
08/26/2016 +38 days 🔍
09/06/2022 +2202 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206903
Researcher: Guido Vranken
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-2106 (🔍)
GCVE (CVE): GCVE-0-2016-2106
GCVE (VulDB): GCVE-100-89772

OVAL: 🔍

SecurityFocus: 89744 - OpenSSL CVE-2016-2106 Integer Overflow Vulnerability
SecurityTracker: 1035721

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

Entryinfo

Created: 07/19/2016 19:25
Updated: 09/06/2022 10:00
Changes: 07/19/2016 19:25 (72), 03/03/2019 11:53 (11), 09/06/2022 10:00 (7)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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