Apple iOS up to 9.2 libxml2 memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0$5k-$25k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Apple iOS up to 9.2. Impacted is an unknown function of the component libxml2. The manipulation results in memory corruption. This vulnerability is cataloged as CVE-2015-8242. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Apple iOS up to 9.2 (Smartphone Operating System). Affected is an unknown part of the component libxml2. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 03/21/2016 by Dave as HT206166 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2015-8242 since 11/18/2015. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. 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 07/11/2022). 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 87369 (Ubuntu 12.04 LTS / 14.04 LTS / 15.04 / 15.10 : libxml2 vulnerabilities (USN-2834-1)), 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 351588 (Amazon Linux Security Advisory for libxml2: ALAS2-2019-1220).

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 (87369), SecurityFocus (BID 77681†) and Vulnerability Center (SBV-57586†). The entries VDB-77250, VDB-79257, VDB-79258 and VDB-79334 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

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

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 87369
Nessus Name: Ubuntu 12.04 LTS / 14.04 LTS / 15.04 / 15.10 : libxml2 vulnerabilities (USN-2834-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: alas-2015-628
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
Patch: git.gnome.org

Timelineinfo

11/18/2015 🔍
11/22/2015 +4 days 🔍
12/14/2015 +22 days 🔍
12/15/2015 +0 days 🔍
03/21/2016 +97 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: Dave
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-8242 (🔍)
GCVE (CVE): GCVE-0-2015-8242
GCVE (VulDB): GCVE-100-81504
SecurityFocus: 77681 - libxml2 Out of Bounds Read Multiple Information Disclosure Vulnerabilities
SecurityTracker: 1034243
Vulnerability Center: 57586 - Apple iOS <9.3 Remote DoS and Information Disclosure in libxml2 - CVE-2015-8242, Medium

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

Entryinfo

Created: 03/23/2016 12:44
Updated: 07/11/2022 12:40
Changes: 03/23/2016 12:44 (76), 02/02/2019 11:09 (4), 07/11/2022 12:40 (5)
Complete: 🔍
Cache ID: 216:D48:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!