Apple macOS up to 10.12.5 curl memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple macOS up to 10.12.5. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component curl. Executing a manipulation can lead to memory corruption. This vulnerability is handled as CVE-2016-9586. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple macOS up to 10.12.5 (Operating System). It has been declared as critical. This vulnerability affects some unknown processing of the component curl. 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 bug was discovered 12/21/2016. The weakness was released 07/19/2017 by Daniel Stenberg as HT207922 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2016-9586 since 11/23/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The advisory points out:

Multiple issues were addressed by updating to version 7.54.0.

The vulnerability was handled as a non-public zero-day exploit for at least 100 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 99134 (macOS 10.12.x < 10.12.4 Multiple Vulnerabilities (httpoxy)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176814 (Debian Security Update for curl (DLA 1568-1)).

Upgrading to version 10.12.6 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 (99134) and SecurityFocus (BID 95019†). Entries connected to this vulnerability are available at VDB-90449, VDB-91385, VDB-91680 and VDB-91681. 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: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 8.1
VulDB Temp Score: 7.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CNA Base Score: 5.9
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 99134
Nessus Name: macOS 10.12.x < 10.12.4 Multiple Vulnerabilities (httpoxy)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-HT207922
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 10.12.6
Patch: github.com

Timelineinfo

11/23/2016 🔍
12/21/2016 +28 days 🔍
12/21/2016 +0 days 🔍
03/31/2017 +100 days 🔍
07/19/2017 +110 days 🔍
07/19/2017 +0 days 🔍
07/20/2017 +1 days 🔍
04/23/2018 +276 days 🔍
12/13/2022 +1695 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207922
Researcher: Daniel Stenberg
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-9586 (🔍)
GCVE (CVE): GCVE-0-2016-9586
GCVE (VulDB): GCVE-100-104236
SecurityFocus: 95019 - cURL/libcURL CVE-2016-9586 Buffer Overflow Vulnerability
SecurityTracker: 1037515

scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 07/20/2017 15:35
Updated: 12/13/2022 11:47
Changes: 07/20/2017 15:35 (79), 10/30/2019 14:30 (6), 01/05/2021 11:36 (3), 01/05/2021 11:43 (1), 01/05/2021 11:50 (1), 12/13/2022 11:39 (3), 12/13/2022 11:47 (11)
Complete: 🔍
Cache ID: 216::103

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