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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7.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple Mac OS X up to 10.11.1. It has been rated as critical. This impacts an unknown function of the component OpenSSH. The manipulation leads to memory corruption. This vulnerability is listed as CVE-2015-5334. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Apple Mac OS X up to 10.11.1 (Operating System) and classified as critical. This issue affects an unknown function of the component OpenSSH. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The weakness was presented 12/08/2015 with Qualys as HT205637 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2015-5334 since 07/01/2015. The technical details are unknown and an exploit is not publicly 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 databases at Tenable (86434), SecurityFocus (BID 77112†) and Vulnerability Center (SBV-55141†). See VDB-78550, VDB-78551, VDB-79411 and VDB-79541 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
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-2015-5334 (🔍)
GCVE (CVE): GCVE-0-2015-5334
GCVE (VulDB): GCVE-100-79583
SecurityFocus: 77112 - LibreSSL 'OBJ_obj2txt()' Function Buffer Overflow and Information Disclosure Vulnerabilities
Vulnerability Center: 55141 - Apple MacOS X <10.11.2 Remote DoS or Code Execution Vulnerability due to an Issue in OpenSSH - CVE-2015-5334, High

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

Entryinfo

Created: 12/09/2015 14:05
Updated: 06/29/2022 16:47
Changes: 12/09/2015 14:05 (64), 05/14/2018 09:24 (7), 06/29/2022 16:38 (2), 06/29/2022 16:47 (18)
Complete: 🔍
Cache ID: 216:715:103

Be aware that VulDB is the high quality source for vulnerability data.

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