Apple macOS up to 10.12.3 curl memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Apple macOS up to 10.12.3. This impacts an unknown function of the component curl. Such manipulation leads to memory corruption. This vulnerability is traded as CVE-2016-9586. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple macOS up to 10.12.3 (Operating System). Affected by this issue is an unknown functionality of the component curl. 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 bug was discovered 12/21/2016. The weakness was shared 03/27/2017 by Daniel Stenberg with Mozilla as HT207615 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2016-9586 since 11/23/2016. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The advisory points out:

A buffer overflow was addressed through improved bounds checking.

The vulnerability was handled as a non-public zero-day exploit for at least 96 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 10.12.4 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†). The entries VDB-90449, VDB-91385, VDB-91680 and VDB-91681 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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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 10.12.4
Patch: github.com

Timelineinfo

11/23/2016 🔍
12/21/2016 +28 days 🔍
12/21/2016 +0 days 🔍
03/27/2017 +96 days 🔍
03/27/2017 +0 days 🔍
03/28/2017 +1 days 🔍
03/31/2017 +3 days 🔍
04/23/2018 +388 days 🔍
11/15/2022 +1667 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207615
Researcher: Daniel Stenberg
Organization: Mozilla
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-9586 (🔍)
GCVE (CVE): GCVE-0-2016-9586
GCVE (VulDB): GCVE-100-98624
SecurityFocus: 95019 - cURL/libcURL CVE-2016-9586 Buffer Overflow Vulnerability
OSVDB: - CVE-2016-9586 - haxx - curl - Buffer Overflow Issue
SecurityTracker: 1037515

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

Entryinfo

Created: 03/28/2017 11:07
Updated: 11/15/2022 19:41
Changes: 03/28/2017 11:07 (72), 08/20/2020 17:09 (15), 11/15/2022 19:19 (5), 11/15/2022 19:26 (11), 11/15/2022 19:34 (1), 11/15/2022 19:41 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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