Linux Kernel up to 3.7.2 fs/ext4/namei.c ext4_orphan_del resource management

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 3.7.2. Affected by this vulnerability is the function ext4_orphan_del of the file fs/ext4/namei.c. This manipulation causes resource management. The identification of this vulnerability is CVE-2013-2015. Furthermore, there is an exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel up to 3.7.2 (Operating System). Affected by this vulnerability is the function ext4_orphan_del of the file fs/ext4/namei.c. 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 availability. The summary by CVE is:

The ext4_orphan_del function in fs/ext4/namei.c in the Linux kernel before 3.7.3 does not properly handle orphan-list entries for non-journal filesystems, which allows physically proximate attackers to cause a denial of service (system hang) via a crafted filesystem on removable media, as demonstrated by the e2fsprogs tests/f_orphan_extents_inode/image.gz test.

The weakness was shared 12/27/2012 as not defined mailinglist post (oss-sec). The advisory is shared at openwall.com. The public release happened without involvement of Linux. This vulnerability is known as CVE-2013-2015 since 02/19/2013. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

It is possible to download the exploit at git.kernel.org. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 70837 (Mandriva Linux Security Advisory : kernel (MDVSA-2013:265)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168771 (SUSE Enterprise Linux Security update for the Linux Kernel (SUSE-SU-2016:1203-1)).

Upgrading to version 3.7.3 eliminates this vulnerability. The upgrade is hosted for download at git.kernel.org. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (83851), Tenable (70837), SecurityFocus (BID 59512†), OSVDB (92851†) and Secunia (SA53411†). The entries VDB-7933, VDB-7934, VDB-8173 and VDB-8485 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: 6.2
VulDB Meta Temp Score: 5.6

VulDB Base Score: 6.2
VulDB Temp Score: 5.6
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: Partially
Local: Yes
Remote: No

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 70837
Nessus Name: Mandriva Linux Security Advisory : kernel (MDVSA-2013:265)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 892668
OpenVAS Name: Debian Security Advisory DSA 2668-1 (linux-2.6 - privilege escalation/denial of service/information leak
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Kernel 3.7.3
Patch: git.kernel.org

Timelineinfo

12/27/2012 🔍
12/27/2012 +0 days 🔍
02/19/2013 +54 days 🔍
04/26/2013 +66 days 🔍
04/29/2013 +3 days 🔍
05/03/2013 +4 days 🔍
05/16/2013 +13 days 🔍
11/11/2013 +179 days 🔍
12/15/2013 +34 days 🔍
05/10/2021 +2703 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: openwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-2015 (🔍)
GCVE (CVE): GCVE-0-2013-2015
GCVE (VulDB): GCVE-100-8569

OVAL: 🔍

X-Force: 83851
SecurityFocus: 59512
Secunia: 53411 - Debian update for linux-2.6, Less Critical
OSVDB: 92851
Vulnerability Center: 42571 - Linux Kernel 3.0 Through 3.7.3 Local Denial of Service via a Malicious Filesystem on Removable Media (CVE-2013-2015), Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 05/03/2013 17:50
Updated: 05/10/2021 11:16
Changes: 05/03/2013 17:50 (86), 05/17/2017 09:02 (2), 05/10/2021 11:16 (3)
Complete: 🔍
Committer:
Cache ID: 216:F7B:103

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