Apple iOS up to 10 libxml2 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.4$5k-$25k0.00

Summaryinfo

A vulnerability was found in Apple iOS up to 10 and classified as critical. This affects an unknown function of the component libxml2. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2016-4658. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS up to 10 (Smartphone Operating System) and classified as critical. Affected by this issue is an unknown code of the component libxml2. 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 09/21/2016. The weakness was disclosed 09/20/2016 by Nick Wellnhofer as HT207143 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2016-4658 since 05/11/2016. 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 current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 09/20/2022). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

Multiple memory corruption issues were addressed through improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 96101 (Debian DSA-3744-1 : libxml2 - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196731 (Ubuntu Security Notification for Libxml2 Vulnerabilities (USN-3235-1)).

Upgrading 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 (96101) and SecurityFocus (BID 93054†). The entries VDB-91604, VDB-91602, VDB-91603 and VDB-91605 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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: 96101
Nessus Name: Debian DSA-3744-1 : libxml2 - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-01 September-2016
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: 🔍

Patch: git.gnome.org

Timelineinfo

05/11/2016 🔍
09/20/2016 +132 days 🔍
09/20/2016 +0 days 🔍
09/20/2016 +0 days 🔍
09/21/2016 +1 days 🔍
09/25/2016 +4 days 🔍
09/26/2016 +1 days 🔍
12/27/2016 +92 days 🔍
09/20/2022 +2093 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207143
Researcher: Nick Wellnhofer
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4658 (🔍)
GCVE (CVE): GCVE-0-2016-4658
GCVE (VulDB): GCVE-100-92012

OVAL: 🔍

SecurityFocus: 93054 - Apple iOS/tvOS/MacOS/watchOS Multiple Security Vulnerabilities
SecurityTracker: 1036858

scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 09/26/2016 10:50
Updated: 09/20/2022 13:58
Changes: 09/26/2016 10:50 (67), 07/17/2019 14:35 (17), 09/20/2022 13:58 (5)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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