Apple iOS up to 6.1.4 libxslt XSLT File type conversion

CVSS Meta Temp Score
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CTI Interest Score
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8.7$0-$5k0.00

A vulnerability was found in Apple iOS up to 6.1.4 (Smartphone Operating System). It has been declared as critical. Affected by this vulnerability is an unknown function of the component libxslt. The manipulation of the argument XSLT File with an unknown input leads to a type conversion vulnerability. The CWE definition for the vulnerability is CWE-704. The product does not correctly convert an object, resource, or structure from one type to a different type. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

libxml2 2.9.0-rc1 and earlier, as used in Google Chrome before 21.0.1180.89, does not properly support a cast of an unspecified variable during handling of XSL transforms, which allows remote attackers to cause a denial of service or possibly have unknown other impact via a crafted document, related to the _xmlNs data structure in include/libxml/tree.h.

The weakness was shared 09/18/2013 by Kai Lu and Nicolas Gregoire (miaubiz) with Google Security Team as APPLE-SA-2013-09-18-2 iOS 7 as confirmed mailinglist post (Website). It is possible to read the advisory at prod.lists.apple.com. The mailinglist post contains:

Multiple memory corruption issues existed in libxslt. These issues were addressed by updating libxslt to version 1.1.28.
This vulnerability is known as CVE-2012-2871 since 05/19/2012. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/25/2021). It is expected to see the exploit prices for this product increasing in the near future.

The vulnerability scanner Nessus provides a plugin with the ID 70836 (GLSA-201311-06 : libxml2: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 216049 (VMWare ESXi 5.1.0 Patch Complete Update 1 Missing (KB2041632)).

Upgrading to version iOS 7.0 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (78179) and Tenable (70836). Additional details are provided at zdnet.com. The entries 4619, 4675, 4996 and 5407 are related to this item.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 8.7

VulDB Base Score: 10.0
VulDB Temp Score: 8.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Type conversion
CWE: CWE-704
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 70836
Nessus Name: GLSA-201311-06 : libxml2: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 72472
OpenVAS Name: Debian Security Advisory DSA 2555-1 (libxslt)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍
Upgrade: iOS iOS 7.0
Fortigate IPS: 🔍

Timelineinfo

05/19/2012 🔍
08/30/2012 +103 days 🔍
08/30/2012 +0 days 🔍
08/31/2012 +1 days 🔍
09/04/2012 +4 days 🔍
10/08/2012 +34 days 🔍
09/18/2013 +345 days 🔍
09/18/2013 +0 days 🔍
09/20/2013 +1 days 🔍
11/11/2013 +52 days 🔍
05/25/2021 +2752 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: APPLE-SA-2013-09-18-2 iOS 7
Researcher: Kai Lu, Nicolas Gregoire (miaubiz)
Organization: Google Security Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-2871 (🔍)
OVAL: 🔍
IAVM: 🔍

X-Force: 78179 - Google Chrome XSL transforms code execution
Vulnerability Center: 36063 - Google Chrome Before 21.0.1180.89 and Multiple Apple Products Remote DoS Vulnerability via a Crafted Document (CVE-2012-2871), Medium
SecurityFocus: 55331 - Google Chrome Prior to 21.0.1180.89 Multiple Security Vulnerabilities
Secunia: 50838 - Debian update for libxslt, Highly Critical

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

Entryinfo

Created: 09/20/2013 10:34
Updated: 05/25/2021 09:56
Changes: 09/20/2013 10:34 (85), 04/16/2017 11:24 (12), 05/25/2021 09:56 (3)
Complete: 🔍

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