Apple iOS up to 9.2 libxml2 resource management

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Apple iOS up to 9.2. This issue affects some unknown processing of the component libxml2. The manipulation leads to resource management. This vulnerability is listed as CVE-2015-8035. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS up to 9.2 (Smartphone Operating System). It has been rated as critical. This issue affects some unknown functionality of the component libxml2. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The xz_decomp function in xzlib.c in libxml2 2.9.1 does not properly detect compression errors, which allows context-dependent attackers to cause a denial of service (process hang) via crafted XML data.

The weakness was presented 03/21/2016 by Gustavo Grieco as HT206166 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2015-8035 since 11/02/2015. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The advisory points out:

Multiple memory corruption issues were addressed through improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 86897 (Ubuntu 12.04 LTS / 14.04 LTS / 15.04 / 15.10 : libxml2 vulnerabilities (USN-2812-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124725 (Fedora Security Update for mingw-libxml2 (FEDORA-2016-a9ee80b01d)).

Upgrading to version 9.3 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 (86897), SecurityFocus (BID 77390†) and Vulnerability Center (SBV-57585†). See VDB-79052, VDB-81458, VDB-81485 and VDB-81486 for similar entries. 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: 7.3
VulDB Meta Temp Score: 7.0

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

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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: 86897
Nessus Name: Ubuntu 12.04 LTS / 14.04 LTS / 15.04 / 15.10 : libxml2 vulnerabilities (USN-2812-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-02 March-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: 🔍

Upgrade: iOS 9.3

Timelineinfo

11/02/2015 🔍
11/02/2015 +0 days 🔍
11/17/2015 +15 days 🔍
11/18/2015 +1 days 🔍
03/21/2016 +124 days 🔍
03/21/2016 +0 days 🔍
03/21/2016 +0 days 🔍
03/22/2016 +1 days 🔍
03/23/2016 +1 days 🔍
07/11/2022 +2301 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206166
Researcher: Gustavo Grieco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-8035 (🔍)
GCVE (CVE): GCVE-0-2015-8035
GCVE (VulDB): GCVE-100-81503

OVAL: 🔍

SecurityFocus: 77390 - Libxml2 'parser.c' Denial of Service Vulnerability
SecurityTracker: 1034243
Vulnerability Center: 57585 - Libxml2 2.9.1 Remote DoS via Crafted XML Data, Low

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

Entryinfo

Created: 03/23/2016 12:44
Updated: 07/11/2022 12:33
Changes: 03/23/2016 12:44 (66), 02/02/2019 11:09 (16), 07/11/2022 12:33 (3)
Complete: 🔍
Cache ID: 216:1FA:103

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

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