CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.3	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 4.10.9 and classified as problematic. The impacted element is the function set_mempolicy of the file mm/mempolicy.c of the component Error Handler. The manipulation leads to 7pk error. This vulnerability is uniquely identified as CVE-2017-7616. Local access is required to approach this attack. No exploit exists. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.10.9 (Operating System). It has been rated as problematic. This issue affects the function set_mempolicy of the file mm/mempolicy.c of the component Error Handler. The manipulation with an unknown input leads to a 7pk error vulnerability. Using CWE to declare the problem leads to CWE-388. Impacted is confidentiality. The summary by CVE is:

Incorrect error handling in the set_mempolicy and mbind compat syscalls in mm/mempolicy.c in the Linux kernel through 4.10.9 allows local users to obtain sensitive information from uninitialized stack data by triggering failure of a certain bitmap operation.

The bug was discovered 04/10/2017. The weakness was disclosed 04/10/2017 as confirmed git commit (GIT Repository). The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2017-7616 since 04/10/2017. An attack has to be approached locally. A simple authentication is necessary for exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 99423 (Fedora 25 : kernel (2017-26c9ecd7a4)), 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 276578 (Fedora Security Update for kernel (FEDORA-2017-26c9ecd7a4)).

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 (99423) and SecurityFocus (BID 97527†). The entries VDB-99069 and VDB-99559 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.10.0
• 4.10.1
• 4.10.2
• 4.10.3
• 4.10.4
• 4.10.5
• 4.10.6
• 4.10.7
• 4.10.8
• 4.10.9

License

• open-source

Website

• Vendor: https://www.kernel.org/

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: 7pk error
CWE: CWE-388
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 99423
Nessus Name: Fedora 25 : kernel (2017-26c9ecd7a4)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for kernel FEDORA-2017-8e7549fb91
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

04/10/2017 🔍
04/10/2017 +0 days 🔍
04/10/2017 +0 days 🔍
04/10/2017 +0 days 🔍
04/10/2017 +0 days 🔍
04/11/2017 +1 days 🔍
04/17/2017 +6 days 🔍
04/18/2017 +1 days 🔍
11/28/2022 +2050 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: FEDORA-2017-26c9ecd7a4
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-7616 (🔍)
GCVE (CVE): GCVE-0-2017-7616
GCVE (VulDB): GCVE-100-99557
SecurityFocus: 97527 - Linux Kernel CVE-2017-7616 Multiple Local Information Disclosure Vulnerabilities
OSVDB: - CVE-2017-7616 - Linux - Information Disclosure Issue
SecurityTracker: 1038503

See also: 🔍

Entryinfo

Created: 04/11/2017 09:35
Updated: 11/28/2022 09:13
Changes: 04/11/2017 09:35 (80), 08/28/2020 17:11 (6), 11/28/2022 09:12 (5), 11/28/2022 09:13 (1)
Complete: 🔍
Cache ID: 216:FA5:103

Discussion

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