Apple iOS up to 6.1.4 libxml XML File memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.7$5k-$25k0.00

Summaryinfo

A vulnerability was found in Apple iOS up to 6.1.4 and classified as problematic. The impacted element is an unknown function of the component libxml. Executing a manipulation of the argument XML File can lead to memory corruption. This vulnerability is handled as CVE-2012-5134. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apple iOS up to 6.1.4 (Smartphone Operating System) and classified as problematic. This vulnerability affects an unknown code of the component libxml. The manipulation of the argument XML File with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, and integrity. CVE summarizes:

Heap-based buffer underflow in the xmlParseAttValueComplex function in parser.c in libxml2 2.9.0 and earlier, as used in Google Chrome before 23.0.1271.91 and other products, allows remote attackers to cause a denial of service or possibly execute arbitrary code via crafted entities in an XML document.

The weakness was released 09/18/2013 by Juri Aedla (miaubiz) with Google Security Team as APPLE-SA-2013-09-18-2 iOS 7 as confirmed mailinglist post (Website). The advisory is shared for download at prod.lists.apple.com. The mailinglist post contains:

Multiple memory corruption issues existed in libxml. These issues were addressed by updating libxml to version 2.9.0.
This vulnerability was named CVE-2012-5134 since 09/24/2012. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (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 74846 (openSUSE Security Update : libxml2 (openSUSE-SU-2012:1647-1)), 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 216049 (VMWare ESXi 5.1.0 Patch Complete Update 1 Missing (KB2041632)).

Upgrading to version iOS 7.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.gnome.org. 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 (80294), Tenable (74846), SecurityFocus (BID 56684†), Secunia (SA51448†) and SecurityTracker (ID 1027815†). Additional details are provided at zdnet.com. Entries connected to this vulnerability are available at VDB-4619, VDB-4675, VDB-4996 and VDB-5407. 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: 6.5
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.5
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 74846
Nessus Name: openSUSE Security Update : libxml2 (openSUSE-SU-2012:1647-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 850379
OpenVAS Name: SuSE Update for Chromium openSUSE-SU-2012:1637-1 (Chromium)
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
Patch: git.gnome.org

Timelineinfo

09/24/2012 🔍
11/26/2012 +63 days 🔍
11/26/2012 +0 days 🔍
11/27/2012 +1 days 🔍
11/27/2012 +0 days 🔍
11/30/2012 +3 days 🔍
12/02/2012 +2 days 🔍
09/18/2013 +290 days 🔍
09/18/2013 +0 days 🔍
09/20/2013 +1 days 🔍
06/13/2014 +266 days 🔍
05/25/2021 +2538 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: APPLE-SA-2013-09-18-2 iOS 7
Researcher: Juri Aedla (miaubiz)
Organization: Google Security Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-5134 (🔍)
GCVE (CVE): GCVE-0-2012-5134
GCVE (VulDB): GCVE-100-10336

OVAL: 🔍

X-Force: 80294 - Google Chrome libxml buffer underflow
SecurityFocus: 56684 - Google Chrome Prior to 23.0.1271.91 Multiple Security Vulnerabilities
Secunia: 51448 - Red Hat update for libxml2, Highly Critical
SecurityTracker: 1027815 - Google Chrome Multiple Flaws Let Remote Users Execute Arbitrary Code
Vulnerability Center: 37464 - Libxml2 <=2.9.0 xmlParseAttValueComplex Buffer Overflow Allows Remote DoS via a Crafted XML File, Medium

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

Entryinfo

Created: 09/20/2013 10:34
Updated: 05/25/2021 09:45
Changes: 09/20/2013 10:34 (97), 04/22/2017 09:11 (1), 05/25/2021 09:45 (3)
Complete: 🔍
Cache ID: 216::103

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

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