Apple iOS up to 5.1.1 libxml numeric error

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple iOS up to 5.1.1. It has been declared as problematic. Affected by this issue is some unknown functionality of the component libxml. The manipulation results in numeric error. This vulnerability was named CVE-2011-1944. In addition, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apple iOS up to 5.1.1 (Smartphone Operating System). Affected is some unknown processing of the component libxml. The manipulation with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Integer overflow in xpath.c in libxml2 2.6.x through 2.6.32 and 2.7.x through 2.7.8, and libxml 1.8.16 and earlier, allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted XML file that triggers a heap-based buffer overflow when adding a new namespace node, related to handling of XPath expressions.

The weakness was presented 09/19/2012 by Chris Evans with Google Chrome Security Team as APPLE-SA-2012-09-19-1 as confirmed posting (Website). The advisory is shared for download at prod.lists.apple.com. This vulnerability is traded as CVE-2011-1944 since 05/09/2011. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $100k and more. The vulnerability scanner Nessus provides a plugin with the ID 75634 (openSUSE Security Update : libxml2 (openSUSE-SU-2011:0839-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 216039 (VMWare ESXi 4.0.0 Patch Release ESXi400-201209001 Missing (KB2019662)).

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 Exploit-DB (35810), Tenable (75634), SecurityFocus (BID 48056†), OSVDB (73248†) and Secunia (SA44711†). See VDB-4214, VDB-4462, VDB-4520 and VDB-4661 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 75634
Nessus Name: openSUSE Security Update : libxml2 (openSUSE-SU-2011:0839-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 69962
OpenVAS Name: Debian Security Advisory DSA 2255-1 (libxml2)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

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

Timelineinfo

05/09/2011 🔍
05/31/2011 +22 days 🔍
06/01/2011 +1 days 🔍
09/02/2011 +93 days 🔍
09/19/2012 +383 days 🔍
09/19/2012 +0 days 🔍
09/21/2012 +1 days 🔍
06/13/2014 +630 days 🔍
09/13/2024 +3745 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: APPLE-SA-2012-09-19-1
Researcher: Chris Evans
Organization: Google Chrome Security Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-1944 (🔍)
GCVE (CVE): GCVE-0-2011-1944
GCVE (VulDB): GCVE-100-6348

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 48056 - libxml2 Invalid XPath Multiple Memory Corruption Vulnerabilities
Secunia: 44711 - Libxml2 XPath Nodeset Processing Vulnerability, Highly Critical
OSVDB: 73248

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

Entryinfo

Created: 09/21/2012 13:45
Updated: 09/13/2024 03:29
Changes: 09/21/2012 13:45 (86), 04/29/2019 07:29 (4), 09/13/2024 03:29 (25)
Complete: 🔍
Cache ID: 216:335:103

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