Linux Kernel up to 4.3.x fs/fuse/file.c fuse_fill_write_pages iov resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Linux Kernel up to 4.3.x. This impacts the function fuse_fill_write_pages of the file fs/fuse/file.c. Such manipulation as part of iov leads to resource management. This vulnerability is traded as CVE-2015-8785. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 4.3.x (Operating System). Affected by this issue is the function fuse_fill_write_pages of the file fs/fuse/file.c. The manipulation as part of a iov leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. CVE summarizes:

The fuse_fill_write_pages function in fs/fuse/file.c in the Linux kernel before 4.4 allows local users to cause a denial of service (infinite loop) via a writev system call that triggers a zero length for the first segment of an iov.

The weakness was shared 02/08/2016 by Salvatore Bonaccorso (Website). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2015-8785 since 01/23/2016. 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.

The vulnerability scanner Nessus provides a plugin with the ID 88600 (Debian DLA-412-1 : linux-2.6 security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. 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 4.4 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (88600), SecurityFocus (BID 81688†) and Vulnerability Center (SBV-56443†). The entries VDB-8569, VDB-78541, VDB-79223 and VDB-79228 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 88600
Nessus Name: Debian DLA-412-1 : linux-2.6 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 850584
OpenVAS Name: SuSE Update for kernel openSUSE-SU-2016:2144-1 (kernel)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.4
Patch: git.kernel.org

Timelineinfo

01/23/2016 🔍
01/23/2016 +0 days 🔍
02/01/2016 +9 days 🔍
02/05/2016 +4 days 🔍
02/07/2016 +1 days 🔍
02/07/2016 +0 days 🔍
02/08/2016 +0 days 🔍
02/08/2016 +0 days 🔍
02/08/2016 +0 days 🔍
07/07/2022 +2340 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-2886-1
Researcher: Salvatore Bonaccorso
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8785 (🔍)
GCVE (CVE): GCVE-0-2015-8785
GCVE (VulDB): GCVE-100-80804

OVAL: 🔍

SecurityFocus: 81688 - Linux Kernel 'fs/fuse/file.c' Local Denial of Service Vulnerability
Vulnerability Center: 56443 - Linux kernel before 4.4 Local DoS via a \x27writev\x27 System Call, Medium

See also: 🔍

Entryinfo

Created: 02/08/2016 09:05
Updated: 07/07/2022 08:11
Changes: 02/08/2016 09:05 (70), 08/21/2018 08:52 (19), 07/07/2022 08:11 (4)
Complete: 🔍
Cache ID: 216:12E:103

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