Apple iOS up to 9.1 libxml2 memory corruption

CVSS Meta Temp Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple iOS up to 9.1. Affected by this issue is some unknown functionality of the component libxml2. The manipulation leads to memory corruption. This vulnerability is traded as CVE-2015-3807. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS up to 9.1 (Smartphone Operating System) and classified as critical. This issue affects an unknown functionality 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 summary by CVE is:

libxml2 in Apple iOS before 8.4.1 and OS X before 10.10.5 allows remote attackers to obtain sensitive information from process memory or cause a denial of service (memory corruption) via a crafted XML document.

The weakness was shared 12/08/2015 by Ilja van Sprundel with Nanyang Technological University as HT205635 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2015-3807 since 05/07/2015. 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:

A memory corruption issue existed in the parsing of XML files. This issue was addressed through improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 87314 (Mac OS X 10.11.x < 10.11.2 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124389 (Apple Mac OS X v10.11.2 and Security Update 2015-008 Not Installed (APPLE-SA-2015-12-08-3)).

Upgrading to version 9.2 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 (87314), SecurityFocus (BID 76343†) and Vulnerability Center (SBV-56799†). The entries VDB-77102, VDB-77103, VDB-77104 and VDB-77105 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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CPE 2.3info

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CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
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Nessus ID: 87314
Nessus Name: Mac OS X 10.11.x < 10.11.2 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
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Upgrade: iOS 9.2

Timelineinfo

05/07/2015 🔍
08/13/2015 +98 days 🔍
08/16/2015 +3 days 🔍
12/08/2015 +114 days 🔍
12/08/2015 +0 days 🔍
12/09/2015 +1 days 🔍
12/09/2015 +0 days 🔍
02/24/2016 +77 days 🔍
02/28/2016 +4 days 🔍
11/14/2024 +3181 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205635
Researcher: Ilja van Sprundel
Organization: Nanyang Technological University
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-3807 (🔍)
GCVE (CVE): GCVE-0-2015-3807
GCVE (VulDB): GCVE-100-79619
SecurityFocus: 76343 - Apple Mac OS X and iOS Multiple Security Vulnerabilities
SecurityTracker: 1033275
Vulnerability Center: 56799 - Apple tvOS <9.1 Remote Information Disclosure in libxml2, Medium

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

Entryinfo

Created: 12/09/2015 14:32
Updated: 11/14/2024 04:49
Changes: 12/09/2015 14:32 (64), 08/24/2018 08:59 (12), 06/30/2022 02:20 (3), 06/30/2022 02:28 (1), 11/14/2024 04:49 (22)
Complete: 🔍
Cache ID: 216:06D:103

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