Linux Kernel up to 4.5 sclp_ctl.c sclp_ctl_ioctl_sccb Kernel Memory race condition

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.
4.6$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Linux Kernel up to 4.5. This issue affects the function sclp_ctl_ioctl_sccb of the file drivers/s390/char/sclp_ctl.c. Executing a manipulation can lead to race condition (Kernel Memory). This vulnerability is handled as CVE-2016-6130. It is possible to launch the attack on the local host. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.5 (Operating System). It has been declared as problematic. This vulnerability affects the function sclp_ctl_ioctl_sccb of the file drivers/s390/char/sclp_ctl.c. The manipulation with an unknown input leads to a race condition vulnerability (Kernel Memory). The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect confidentiality. CVE summarizes:

Race condition in the sclp_ctl_ioctl_sccb function in drivers/s390/char/sclp_ctl.c in the Linux kernel before 4.6 allows local users to obtain sensitive information from kernel memory by changing a certain length value, aka a "double fetch" vulnerability.

The weakness was released 07/03/2016 (Website). The advisory is shared for download at github.com. This vulnerability was named CVE-2016-6130 since 06/30/2016. The attack needs to be approached locally. The requirement for exploitation is a single authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 91927 (Debian DSA-3616-1 : linux - 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 169396 (SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2016:2912-1)).

Upgrading to version 4.6 eliminates this vulnerability. A possible mitigation has been published 1 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (91927) and SecurityFocus (BID 91540†). Entries connected to this vulnerability are available at VDB-88358, VDB-88378, VDB-88379 and VDB-92733. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.6

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.7
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Name: Kernel Memory
Class: Race condition / Kernel Memory
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 91927
Nessus Name: Debian DSA-3616-1 : linux - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867101
OpenVAS Name: Fedora Update for kernel FEDORA-2016-784d5526d8
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Kernel 4.6
Patch: git.kernel.org

Timelineinfo

04/25/2016 🔍
06/30/2016 +66 days 🔍
07/03/2016 +3 days 🔍
07/03/2016 +0 days 🔍
07/04/2016 +1 days 🔍
07/04/2016 +0 days 🔍
07/05/2016 +1 days 🔍
08/26/2022 +2243 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 532c34b5fbf1687df63b3fcd5b2846312ac943c6
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-6130 (🔍)
GCVE (CVE): GCVE-0-2016-6130
GCVE (VulDB): GCVE-100-88576

OVAL: 🔍

SecurityFocus: 91540 - Linux Kernel CVE-2016-6130 Local Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 07/04/2016 10:11
Updated: 08/26/2022 13:23
Changes: 07/04/2016 10:11 (71), 02/16/2019 14:32 (13), 08/26/2022 13:23 (5)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!