Apple Safari up to 9.1.0 WebKit memory corruption

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

Summaryinfo

A vulnerability categorized as critical has been discovered in Apple Safari up to 9.1.0. This impacts an unknown function of the component WebKit. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2016-1857. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple Safari up to 9.1.0 (Web Browser). Affected by this issue is an unknown functionality of the component WebKit. 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 released 05/16/2016 with Zero Day Initiative as HT206565 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2016-1857 since 01/13/2016. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/21/2022). The advisory points out:

Multiple memory corruption issues were addressed through improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 91311 (Apple TV < 9.2.1 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370008 (Apple Safari 9.1.1 Not Installed (APPLE-SA-2016-05-16-5)).

Upgrading to version 9.1.1 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 (91311). Entries connected to this vulnerability are available at VDB-87444, VDB-87451, VDB-87453 and VDB-87455. 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: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 91311
Nessus Name: Apple TV < 9.2.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 11226
OpenVAS Name: Fedora Update for webkitgtk4 FEDORA-2016-f5107c318e
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: Safari 9.1.1

Timelineinfo

01/13/2016 🔍
05/16/2016 +124 days 🔍
05/16/2016 +0 days 🔍
05/18/2016 +2 days 🔍
05/20/2016 +2 days 🔍
05/24/2016 +4 days 🔍
08/21/2022 +2280 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206565
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-1857 (🔍)
GCVE (CVE): GCVE-0-2016-1857
GCVE (VulDB): GCVE-100-87536
SecurityTracker: 1035888

See also: 🔍

Entryinfo

Created: 05/18/2016 12:55
Updated: 08/21/2022 11:05
Changes: 05/18/2016 12:55 (68), 12/02/2018 09:51 (10), 08/21/2022 11:05 (4)
Complete: 🔍
Cache ID: 216:5AD:103

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