Apple iOS up to 9.2 libxml2 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.8$5k-$25k0.00

Summaryinfo

A vulnerability described as critical has been identified in Apple iOS up to 9.2. The impacted element is an unknown function of the component libxml2. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2016-1762. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Apple iOS up to 9.2 (Smartphone Operating System). Affected by this issue is an unknown code block 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. CVE summarizes:

The xmlNextChar function in libxml2 before 2.9.4 allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted XML document.

The weakness was released 03/21/2016 with Apple as HT206166 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is handled as CVE-2016-1762 since 01/13/2016. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 12/18/2025). 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 93154 (SUSE SLES11 Security Update : libxml2 (SUSE-SU-2016:1604-1)), 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 350852 (Amazon Linux Security Advisory for libxml2: ALAS-2016-719).

Upgrading to version 9.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 25229.

The vulnerability is also documented in the databases at Tenable (93154), SecurityFocus (BID 85059†) and Vulnerability Center (SBV-57590†). Entries connected to this vulnerability are available at VDB-80763, VDB-81414, VDB-81421 and VDB-81422. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.0
VulDB Meta Temp Score: 8.8

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

NVD Base Score: 8.1
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: 93154
Nessus Name: SUSE SLES11 Security Update : libxml2 (SUSE-SU-2016:1604-1)
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: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: iOS 9.3
Patch: git.gnome.org
TippingPoint: 🔍

Timelineinfo

01/13/2016 🔍
03/21/2016 +68 days 🔍
03/21/2016 +0 days 🔍
03/21/2016 +0 days 🔍
03/21/2016 +0 days 🔍
03/22/2016 +1 days 🔍
03/22/2016 +0 days 🔍
03/23/2016 +0 days 🔍
08/29/2016 +159 days 🔍
12/18/2025 +3397 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206166
Organization: Apple
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-1762 (🔍)
GCVE (CVE): GCVE-0-2016-1762
GCVE (VulDB): GCVE-100-81506

OVAL: 🔍

SecurityFocus: 85059 - libxml2 CVE-2016-1762 Multiple Memory Corruption Vulnerabilities
SecurityTracker: 1035353
Vulnerability Center: 57590 - Apple iOS <9.3 Remote Unspecified Vulnerability in libxml2 - CVE-2016-1762, Medium

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

Entryinfo

Created: 03/23/2016 12:44
Updated: 12/18/2025 00:05
Changes: 03/23/2016 12:44 (78), 02/02/2019 11:10 (14), 07/11/2022 13:05 (4), 12/18/2025 00:05 (25)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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