Linux Kernel 3.17 do_umount access control

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel 3.17 and classified as problematic. Affected by this issue is the function do_umount. The manipulation leads to access control. This vulnerability is referenced as CVE-2014-7975. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel 3.17 (Operating System). It has been rated as problematic. This issue affects the function do_umount. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is availability.

The weakness was published 10/08/2014 by Andy Lutomirski as confirmed mailinglist post (oss-sec). The advisory is shared at seclists.org. The identification of this vulnerability is CVE-2014-7975 since 10/08/2014. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 79431 (Ubuntu 10.04 LTS : linux vulnerability (USN-2415-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236429 (Red Hat Update for kernel (RHSA-2017:1842)).

Upgrading eliminates this vulnerability. The upgrade is hosted for download at thread.gmane.org. The vulnerability will be addressed with the following lines of code:

if (!capable(CAP_SYS_ADMIN))
   return -EPERM;

The vulnerability is also documented in the databases at X-Force (96994), Tenable (79431), SecurityFocus (BID 70314†), Secunia (SA61145†) and SecurityTracker (ID 1031180†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.4

VulDB Base Score: 6.2
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 79431
Nessus Name: Ubuntu 10.04 LTS : linux vulnerability (USN-2415-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 867487
OpenVAS Name: Fedora Update for kernel FEDORA-2014-17283
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: thread.gmane.org
Patch: git.kernel.org

Timelineinfo

10/08/2014 🔍
10/08/2014 +0 days 🔍
10/08/2014 +0 days 🔍
10/08/2014 +0 days 🔍
10/13/2014 +5 days 🔍
10/14/2014 +1 days 🔍
10/15/2014 +1 days 🔍
11/08/2014 +24 days 🔍
11/25/2014 +17 days 🔍
02/21/2022 +2645 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-2415-1
Researcher: Andy Lutomirski
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-7975 (🔍)
GCVE (CVE): GCVE-0-2014-7975
GCVE (VulDB): GCVE-100-67805

OVAL: 🔍

X-Force: 96994 - Linux Kernel umount denial of service, Medium Risk
SecurityFocus: 70314
Secunia: 61145
SecurityTracker: 1031180 - Linux Kernel do_umount() Privilege Flaw Lets Local Users Deny Service
Vulnerability Center: 46429 - Linux Kernel through 3.17 Local DoS in the do_umount Function - CVE-2014-7975, Medium

Entryinfo

Created: 10/15/2014 11:15
Updated: 02/21/2022 23:33
Changes: 10/15/2014 11:15 (83), 06/08/2017 10:25 (2), 02/21/2022 23:09 (4), 02/21/2022 23:21 (10), 02/21/2022 23:33 (2)
Complete: 🔍
Cache ID: 216:3A4:103

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