Linux Kernel up to 4.3 writeback.h null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 4.3. It has been declared as problematic. This issue affects some unknown processing of the file include/trace/events/writeback.h. The manipulation results in null pointer dereference. This vulnerability is known as CVE-2016-3070. Attacking locally is a requirement. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.3 (Operating System). It has been classified as critical. Affected is some unknown processing of the file include/trace/events/writeback.h. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The trace_writeback_dirty_page implementation in include/trace/events/writeback.h in the Linux kernel before 4.4 improperly interacts with mm/migrate.c, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by triggering a certain page move.

The weakness was published 08/06/2016 with Red Hat (Website). The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2016-3070 since 03/10/2016. The exploitability is told to be easy. The attack needs to be approached locally. Required for exploitation is a authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 92314 (Ubuntu 12.04 LTS : linux-lts-trusty vulnerability (USN-3034-2)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157314 (Oracle Enterprise Linux Security Update for kernel (ELSA-2016-2574)-Deprecated).

Upgrading to version 4.4 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (92314) and SecurityFocus (BID 90518†). Similar entries are available at VDB-82951, VDB-82953, VDB-82963 and VDB-82965. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / 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: 92314
Nessus Name: Ubuntu 12.04 LTS : linux-lts-trusty vulnerability (USN-3034-2)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 863279
OpenVAS Name: RedHat Update for kernel RHSA-2016:2574-02
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.4
Patch: git.kernel.org

Timelineinfo

03/10/2016 🔍
05/10/2016 +61 days 🔍
07/14/2016 +65 days 🔍
07/15/2016 +1 days 🔍
08/06/2016 +22 days 🔍
08/06/2016 +0 days 🔍
08/08/2016 +2 days 🔍
09/12/2022 +2226 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-3034-1
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-3070 (🔍)
GCVE (CVE): GCVE-0-2016-3070
GCVE (VulDB): GCVE-100-90600

OVAL: 🔍

SecurityFocus: 90518 - Linux Kernel 'migrate.c' Null Pointer Deference Local Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 08/08/2016 15:17
Updated: 09/12/2022 15:10
Changes: 08/08/2016 15:17 (67), 03/21/2019 20:33 (14), 09/12/2022 15:05 (4), 09/12/2022 15:10 (1)
Complete: 🔍
Cache ID: 216::103

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