Apple iOS up to 9.3.2 libxml2 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.6$5k-$25k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Apple iOS up to 9.3.2. Affected by this issue is some unknown functionality of the component libxml2. This manipulation causes memory corruption. This vulnerability is registered as CVE-2016-1836. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Apple iOS up to 9.3.2 (Smartphone Operating System). Affected by this vulnerability is an unknown code of the component libxml2. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 07/18/2016 by Kostya Serebryany (Basti) with Nanyang Technological University as HT206902 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2016-1836 since 01/13/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/05/2022). 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 91797 (Oracle Linux 6 / 7 : libxml2 (ELSA-2016-1292)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168916 (OpenSuSE Security Update for libxml2 (openSUSE-SU-2016:1594-1)).

Upgrading to version 9.3.3 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 (91797) and SecurityFocus (BID 90691†). Similar entries are available at VDB-87444, VDB-87451, VDB-87453 and VDB-87455. Be aware that VulDB is the high quality 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: 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

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VulDB Base 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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 91797
Nessus Name: Oracle Linux 6 / 7 : libxml2 (ELSA-2016-1292)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: alas-2016-719
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: iOS 9.3.3
Patch: git.gnome.org

Timelineinfo

01/13/2016 🔍
05/16/2016 +124 days 🔍
05/20/2016 +3 days 🔍
06/24/2016 +35 days 🔍
07/18/2016 +24 days 🔍
07/18/2016 +0 days 🔍
07/19/2016 +1 days 🔍
09/05/2022 +2239 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206902
Researcher: Kostya Serebryany (Basti)
Organization: Nanyang Technological University
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-1836 (🔍)
GCVE (CVE): GCVE-0-2016-1836
GCVE (VulDB): GCVE-100-89695

OVAL: 🔍

SecurityFocus: 90691 - Apple Mac OS X/watchOS/iOS/tvOS Multiple Security Vulnerabilities
SecurityTracker: 1035890

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

Entryinfo

Created: 07/19/2016 16:33
Updated: 09/05/2022 13:49
Changes: 07/19/2016 16:33 (72), 03/03/2019 09:09 (14), 09/05/2022 13:49 (5)
Complete: 🔍
Cache ID: 216:938:103

Be aware that VulDB is the high quality source for vulnerability data.

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