Linux Kernel 4.2 CUSE Driver resource management

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Linux Kernel 4.2. Affected by this vulnerability is an unknown functionality of the component CUSE Driver. This manipulation causes resource management. The identification of this vulnerability is CVE-2015-1339. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Linux Kernel 4.2 (Operating System). It has been declared as critical. Affected by this vulnerability is an unknown code of the component CUSE Driver. 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 confidentiality, integrity, and availability. The summary by CVE is:

Memory leak in the cuse_channel_release function in fs/fuse/cuse.c in the Linux kernel before 4.4 allows local users to cause a denial of service (memory consumption) or possibly have unspecified other impact by opening /dev/cuse many times.

The weakness was shared 03/02/2016 as confirmed mailinglist post (oss-sec). The advisory is shared at seclists.org. This vulnerability is known as CVE-2015-1339 since 01/22/2015. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 90482 (openSUSE Security Update : the Linux Kernel (openSUSE-2016-445)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169351 (OpenSuSE Security Update for kernel (openSUSE-SU-2016:2649-1)).

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 2 months after the disclosure of the vulnerability. The vulnerability will be addressed with the following lines of code:

/* Base reference is now owned by "fud" */
fuse_conn_put(&cc->fc);

The vulnerability is also documented in the databases at X-Force (111230) and Tenable (90482). The entry VDB-83129 is 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: 8.0
VulDB Meta Temp Score: 7.4

VulDB Base Score: 9.8
VulDB Temp Score: 8.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.2
NVD Vector: 🔍

CVSSv2info

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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: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 90482
Nessus Name: openSUSE Security Update : the Linux Kernel (openSUSE-2016-445)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 870133
OpenVAS Name: SuSE Update for the openSUSE-SU-2016:1008-1 (Linux Kernel)
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

01/22/2015 🔍
03/02/2016 +405 days 🔍
03/04/2016 +2 days 🔍
04/12/2016 +38 days 🔍
04/13/2016 +1 days 🔍
04/27/2016 +14 days 🔍
07/09/2022 +2264 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 2c5816b4beccc8ba709144539f6fdd764f8fa49c
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-1339 (🔍)
GCVE (CVE): GCVE-0-2015-1339
GCVE (VulDB): GCVE-100-81169
X-Force: 111230 - Linux Kernel CUSE driver denial of service

See also: 🔍

Entryinfo

Created: 03/04/2016 11:06
Updated: 07/09/2022 08:20
Changes: 03/04/2016 11:06 (72), 08/26/2018 09:29 (10), 07/09/2022 08:20 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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