Apple iOS up to 5.1.1 libxml resource management

CVSS Meta Temp Score
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CTI Interest Score
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9.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple iOS up to 5.1.1. It has been rated as problematic. This affects an unknown part of the component libxml. This manipulation causes resource management. The identification of this vulnerability is CVE-2011-2821. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Apple iOS up to 5.1.1 (Smartphone Operating System) and classified as critical. Affected by this vulnerability is an unknown function of the component libxml. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Double free vulnerability in libxml2, as used in Google Chrome before 13.0.782.215, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted XPath expression.

The weakness was shared 09/19/2012 by Yang Dingning (miaubiz) with NCNIPC as APPLE-SA-2012-09-19-1 as confirmed posting (Website). The advisory is shared at prod.lists.apple.com. This vulnerability is known as CVE-2011-2821 since 07/20/2011. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 75635 (openSUSE Security Update : libxml2 (openSUSE-SU-2012:0073-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 216023 (VMWare ESXi 5.0.0 Patch Release ESXi500-201207001 Missing (KB2019107)).

Upgrading to version 6.0 eliminates this vulnerability. The problem might be mitigated by replacing the product with Google Android as an alternative. The best possible mitigation is suggested to be upgrading to the latest version. 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 (69368), Tenable (75635), SecurityFocus (BID 49279†) and Vulnerability Center (SBV-32877†). The entries VDB-4403, VDB-6213, VDB-6151 and VDB-6186 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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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: 75635
Nessus Name: openSUSE Security Update : libxml2 (openSUSE-SU-2012:0073-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 70712
OpenVAS Name: Debian Security Advisory DSA 2394-1 (libxml2)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍
Upgrade: iOS 6.0
Alternative: Google Android

Timelineinfo

07/20/2011 🔍
08/22/2011 +33 days 🔍
08/22/2011 +0 days 🔍
08/29/2011 +7 days 🔍
08/30/2011 +1 days 🔍
09/19/2012 +386 days 🔍
09/19/2012 +0 days 🔍
09/21/2012 +1 days 🔍
06/13/2014 +630 days 🔍
04/13/2021 +2496 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: APPLE-SA-2012-09-19-1
Researcher: Yang Dingning (miaubiz)
Organization: NCNIPC
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-2821 (🔍)
GCVE (CVE): GCVE-0-2011-2821
GCVE (VulDB): GCVE-100-6349

OVAL: 🔍
IAVM: 🔍

X-Force: 69368
SecurityFocus: 49279 - Google Chrome Prior to 13.0.782.215 Multiple Security Vulnerabilities
Vulnerability Center: 32877 - Google Chrome before 13.0.782.215 libxml2 Remote DoS Vulnerability via a Crafted Xpath Expression, Medium

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

Entryinfo

Created: 09/21/2012 13:45
Updated: 04/13/2021 10:13
Changes: 09/21/2012 13:45 (80), 03/30/2017 10:25 (9), 04/13/2021 10:13 (3)
Complete: 🔍
Cache ID: 216:99C:103

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