Linux Kernel up to 4.5.0 ib_srpt.c null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 4.5.0. It has been rated as problematic. Affected is an unknown function of the file drivers/infiniband/ulp/srpt/ib_srpt.c. The manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2016-6327. An attack has to be approached locally. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 4.5.0 (Operating System). This issue affects an unknown function of the file drivers/infiniband/ulp/srpt/ib_srpt.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

drivers/infiniband/ulp/srpt/ib_srpt.c in the Linux kernel before 4.5.1 allows local users to cause a denial of service (NULL pointer dereference and system crash) by using an ABORT_TASK command to abort a device write operation.

The weakness was shared 10/16/2016 (Website). The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2016-6327 since 07/26/2016. The exploitation is known to be easy. An attack has to be approached locally. The successful exploitation requires a simple authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 95046 (OracleVM 3.3 : Unbreakable / etc (OVMSA-2016-0163)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family OracleVM Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169343 (OpenSuSE Security Update for the Linux Kernel (openSUSE-SU-2016:2625-1)).

Upgrading to version 4.5.1 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (95046) and SecurityFocus (BID 92549†). The entries VDB-81297, VDB-90658, VDB-92395 and VDB-92504 are 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: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
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: 95046
Nessus Name: OracleVM 3.3 : Unbreakable / etc (OVMSA-2016-0163)
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: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Kernel 4.5.1
Patch: git.kernel.org

Timelineinfo

07/26/2016 🔍
08/19/2016 +24 days 🔍
10/16/2016 +58 days 🔍
10/16/2016 +0 days 🔍
10/17/2016 +1 days 🔍
11/21/2016 +35 days 🔍
11/22/2016 +1 days 🔍
09/26/2022 +2134 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 51093254bf879bc9ce96590400a87897c7498463
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-6327 (🔍)
GCVE (CVE): GCVE-0-2016-6327
GCVE (VulDB): GCVE-100-92729
SecurityFocus: 92549 - Linux Kernel CVE-2016-6327 Null Pointer Deference Local Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 10/17/2016 10:26
Updated: 09/26/2022 10:05
Changes: 10/17/2016 10:26 (68), 05/11/2019 00:45 (13), 09/26/2022 10:01 (4), 09/26/2022 10:05 (1)
Complete: 🔍
Cache ID: 216::103

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

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