Apple macOS up to 10.12.1 curl out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Apple macOS up to 10.12.1. This issue affects some unknown processing of the component curl. The manipulation leads to out-of-bounds. This vulnerability is listed as CVE-2016-8620. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple macOS up to 10.12.1 (Operating System). It has been rated as very critical. This issue affects some unknown processing of the component curl. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The globbing feature in curl before version 7.51.0 has a flaw that leads to integer overflow and out-of-bounds read via user controlled input.

The bug was discovered 09/14/2016. The weakness was presented 12/13/2016 as HT207423 as confirmed advisory (Website). The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2016-8620 since 10/12/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/07/2022). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

Multiple issues existed in curl. These issues were addressed by updating to curl version 7.51.0.

The vulnerability was handled as a non-public zero-day exploit for at least 51 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 94572 (SUSE SLES11 Security Update : curl (SUSE-SU-2016:2714-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157987 (Oracle Enterprise Linux Security Update for curl (ELSA-2019-4652)).

Upgrading to version 10.12.2 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 (94572) and SecurityFocus (BID 94102†). See VDB-90449, VDB-91385, VDB-91680 and VDB-91681 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.7
VulDB Meta Temp Score: 8.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
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: 94572
Nessus Name: SUSE SLES11 Security Update : curl (SUSE-SU-2016:2714-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-01 February-2017
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 10.12.2

Timelineinfo

09/14/2016 🔍
10/12/2016 +28 days 🔍
11/04/2016 +23 days 🔍
11/04/2016 +0 days 🔍
12/13/2016 +39 days 🔍
12/13/2016 +0 days 🔍
12/16/2016 +3 days 🔍
08/01/2018 +592 days 🔍
10/07/2022 +1528 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207423
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-8620 (🔍)
GCVE (CVE): GCVE-0-2016-8620
GCVE (VulDB): GCVE-100-94373

OVAL: 🔍

SecurityFocus: 94102 - cURL CVE-2016-8620 Remote Security Bypass Vulnerability
SecurityTracker: 1037192

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

Entryinfo

Created: 12/16/2016 14:12
Updated: 10/07/2022 21:39
Changes: 12/16/2016 14:12 (73), 07/08/2019 14:34 (13), 10/07/2022 21:27 (4), 10/07/2022 21:39 (12)
Complete: 🔍
Cache ID: 216::103

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