Apple Mac OS X up to 10.11.1 OpenSSH memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

A vulnerability has been found in Apple Mac OS X up to 10.11.1 (Operating System) and classified as critical. This vulnerability affects some unknown processing of the component OpenSSH. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 12/08/2015 with Qualys as HT205637 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability was named CVE-2015-5333 since 07/01/2015. The technical details are unknown and an exploit is not available. The advisory points out:

Multiple vulnerabilities existed in LibreSSL versions prior to 2.1.8. These were addressed by updating LibreSSL to version 2.1.8.

The vulnerability scanner Nessus provides a plugin with the ID 86434 (FreeBSD : LibreSSL -- Memory leak and buffer overflow (e75a96df-73ca-11e5-9b45-b499baebfeaf)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371218 (Apple macOS Mojave 10.14 Not Installed (APPLE-SA-2018-9-24-1)).

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 vulnerability database at Tenable (86434). The entries 78550, 78551, 79411 and 79541 are pretty similar.

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: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
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: Yes
Remote: No

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 86434
Nessus Name: FreeBSD : LibreSSL -- Memory leak and buffer overflow (e75a96df-73ca-11e5-9b45-b499baebfeaf)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-02 March-2016
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Mac OS X 10.11.2

Timelineinfo

07/01/2015 🔍
10/15/2015 +106 days 🔍
10/15/2015 +0 days 🔍
10/19/2015 +4 days 🔍
12/08/2015 +50 days 🔍
12/08/2015 +0 days 🔍
12/09/2015 +1 days 🔍
12/10/2015 +1 days 🔍
06/29/2022 +2393 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205637
Organization: Qualys
Status: Confirmed

CVE: CVE-2015-5333 (🔍)
Vulnerability Center: 55139 - Apple MacOS X <10.11.2 Remote DoS Vulnerability due to an Issue in OpenSSH - CVE-2015-5333, High
SecurityFocus: 77112 - LibreSSL 'OBJ_obj2txt()' Function Buffer Overflow and Information Disclosure Vulnerabilities

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

Entryinfo

Created: 12/09/2015 14:05
Updated: 06/29/2022 16:31
Changes: 12/09/2015 14:05 (64), 05/14/2018 09:23 (7), 06/29/2022 16:23 (2), 06/29/2022 16:31 (18)
Complete: 🔍

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