Apple Safari up to 11.0.1 WebKit 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 categorized as critical has been discovered in Apple Safari up to 11.0.1. Affected by this vulnerability is an unknown functionality of the component WebKit. The manipulation results in memory corruption. This vulnerability was named CVE-2017-7156. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apple Safari up to 11.0.1 (Web Browser). Affected is an unknown functionality of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 12/01/2017. The weakness was presented 12/13/2017 by Jeonghoon Shin as HT208324 as confirmed security advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2017-7156 since 03/17/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 105635 (GLSA-201801-09 : WebkitGTK+: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370686 (Apple iCloud for Windows Multiple Memory Corruption Vulnerabilities(HT208328)).

Upgrading to version 11.0.2 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (105635), SecurityFocus (BID 102181†) and SecurityTracker (ID 1040012†). See VDB-110749, VDB-110750, VDB-110751 and VDB-110752 for similar entries. 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: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 105635
Nessus Name: GLSA-201801-09 : WebkitGTK+: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 861927
OpenVAS Name: Fedora Update for webkitgtk4 FEDORA-2017-06b373d942
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Safari 11.0.2

Timelineinfo

03/17/2017 🔍
12/01/2017 +259 days 🔍
12/06/2017 +5 days 🔍
12/13/2017 +7 days 🔍
12/13/2017 +0 days 🔍
12/13/2017 +0 days 🔍
12/17/2017 +4 days 🔍
12/27/2017 +10 days 🔍
01/08/2018 +12 days 🔍
01/27/2021 +1115 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208324
Researcher: Jeonghoon Shin
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-7156 (🔍)
GCVE (CVE): GCVE-0-2017-7156
GCVE (VulDB): GCVE-100-110748
SecurityFocus: 102181 - WebKit Multiple Memory Corruption Vulnerabilities
SecurityTracker: 1040012

See also: 🔍

Entryinfo

Created: 12/17/2017 09:49
Updated: 01/27/2021 13:05
Changes: 12/17/2017 09:49 (78), 12/15/2019 17:13 (9), 01/27/2021 13:05 (2)
Complete: 🔍
Cache ID: 216::103

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