Linux Kernel up to 4.11.1 NFSv4 resource management

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 4.11.1. The impacted element is an unknown function of the component NFSv4. The manipulation leads to resource management. This vulnerability is documented as CVE-2017-9059. The attack needs to be performed locally. There is not any exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.11.1 (Operating System) and classified as problematic. This issue affects some unknown processing of the component NFSv4. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

The NFSv4 implementation in the Linux kernel through 4.11.1 allows local users to cause a denial of service (resource consumption) by leveraging improper channel callback shutdown when unmounting an NFSv4 filesystem, aka a "module reference and kernel daemon" leak.

The bug was discovered 05/18/2017. The weakness was released 05/18/2017 as confirmed git commit (GIT Repository). It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2017-9059 since 05/18/2017. Attacking locally is a requirement. Required for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 100435 (Fedora 25 : kernel (2017-273b67d5ee)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276660 (Fedora Security Update for kernel (FEDORA-2017-273b67d5ee)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. A possible mitigation has been published 1 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100435) and SecurityFocus (BID 98551†). Entries connected to this vulnerability are available at VDB-101073, VDB-101503, VDB-101504 and VDB-101505. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100435
Nessus Name: Fedora 25 : kernel (2017-273b67d5ee)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for kernel FEDORA-2017-85744f8aa9
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: git.kernel.org

Timelineinfo

05/18/2017 🔍
05/18/2017 +0 days 🔍
05/18/2017 +0 days 🔍
05/18/2017 +0 days 🔍
05/18/2017 +0 days 🔍
05/18/2017 +0 days 🔍
05/25/2017 +7 days 🔍
05/26/2017 +1 days 🔍
12/06/2022 +2020 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: FEDORA-2017-273b67d5ee
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-9059 (🔍)
GCVE (CVE): GCVE-0-2017-9059
GCVE (VulDB): GCVE-100-101471
SecurityFocus: 98551 - Linux kernel CVE-2017-9059 Local Denial of Service Vulnerability
OSVDB: - CVE-2017-9059 - Linux - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 05/18/2017 16:14
Updated: 12/06/2022 15:27
Changes: 05/18/2017 16:14 (83), 12/06/2022 15:21 (4), 12/06/2022 15:27 (1)
Complete: 🔍
Cache ID: 216::103

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