VDB-9020 · CVE-2013-3955 · OSVDB 93965

Apple iOS up to 6.1 XNU Kernel/msdosfs Filesystem get_xattrinfo input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple iOS up to 6.1 and classified as problematic. Affected by this vulnerability is the function get_xattrinfo of the component XNU Kernel/msdosfs Filesystem. Such manipulation leads to input validation. This vulnerability is referenced as CVE-2013-3955. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Apple iOS up to 6.1 (Smartphone Operating System). Affected by this issue is the function get_xattrinfo of the component XNU Kernel/msdosfs Filesystem. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. CVE summarizes:

The get_xattrinfo function in the XNU kernel in Apple iOS 5.x and 6.x through 6.1.3 on iPad devices does not properly validate the header of an AppleDouble file, which might allow local users to cause a denial of service (memory corruption) or have unspecified other impact via an invalid file on an msdosfs filesystem.

The weakness was published 04/26/2013 by Stefan Esser with SektionEins GmbH as not defined article (Website). The advisory is shared for download at antid0te.com. The public release happened without coordination with the vendor. This vulnerability is handled as CVE-2013-3955 since 06/05/2013. The exploitation is known to be difficult. The attack needs to be approached locally. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

Upgrading to version 7, eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at OSVDB (93965†). Similar entries are available at VDB-9013, VDB-9014, VDB-9015 and VDB-9016. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.1
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: iOS 7,

Timelineinfo

04/26/2013 🔍
06/05/2013 +40 days 🔍
06/05/2013 +0 days 🔍
06/07/2013 +2 days 🔍
05/14/2021 +2898 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: antid0te.com
Researcher: Stefan Esser
Organization: SektionEins GmbH
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-3955 (🔍)
GCVE (CVE): GCVE-0-2013-3955
GCVE (VulDB): GCVE-100-9020
OSVDB: 93965
SecurityTracker: 1029054

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

Entryinfo

Created: 06/07/2013 18:08
Updated: 05/14/2021 13:17
Changes: 06/07/2013 18:08 (52), 05/06/2018 11:30 (6), 05/14/2021 13:17 (3)
Complete: 🔍
Committer:
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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