Linux Kernel up to 4.7 commctrl.c ioctl_send_fib race condition

CVSS Meta Temp Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Linux Kernel up to 4.7. The impacted element is the function ioctl_send_fib of the file drivers/scsi/aacraid/commctrl.c. Executing a manipulation can lead to race condition. This vulnerability appears as CVE-2016-6480. The attack requires local access. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel up to 4.7 (Operating System). This vulnerability affects the function ioctl_send_fib of the file drivers/scsi/aacraid/commctrl.c. The manipulation with an unknown input leads to a race condition vulnerability. 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 availability. CVE summarizes:

Race condition in the ioctl_send_fib function in drivers/scsi/aacraid/commctrl.c in the Linux kernel through 4.7 allows local users to cause a denial of service (out-of-bounds access or system crash) by changing a certain size value, aka a "double fetch" vulnerability.

The weakness was presented 08/06/2016 (Website). The advisory is available at securityfocus.com. This vulnerability was named CVE-2016-6480 since 07/26/2016. The exploitation appears to be easy. Local access is required to approach this attack. The successful exploitation needs a single authentication. Technical details are known, but there is no available exploit.

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 157314 (Oracle Enterprise Linux Security Update for kernel (ELSA-2016-2574)-Deprecated).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (95046) and SecurityFocus (BID 92214†). See VDB-82951, VDB-82953, VDB-82963 and VDB-82965 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.1
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.1
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Race condition
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: 🔍

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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: 850509
OpenVAS Name: Ubuntu Update for linux-lts-trusty USN-3098-2
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
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Timelineinfo

07/26/2016 🔍
08/01/2016 +6 days 🔍
08/06/2016 +5 days 🔍
08/06/2016 +0 days 🔍
08/08/2016 +2 days 🔍
11/21/2016 +105 days 🔍
11/22/2016 +1 days 🔍
09/13/2022 +2121 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2016:2574⛔
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-6480 (🔍)
GCVE (CVE): GCVE-0-2016-6480
GCVE (VulDB): GCVE-100-90658

OVAL: 🔍

SecurityFocus: 92214 - Linux Kernel CVE-2016-6480 Local Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 08/08/2016 15:27
Updated: 09/13/2022 10:26
Changes: 08/08/2016 15:27 (68), 03/22/2019 10:29 (14), 09/13/2022 10:26 (4)
Complete: 🔍
Cache ID: 216:701:103

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