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5.0	$0-$5k	0.00

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 vulnerability database at Tenable (95046). See 82951, 82953, 82963 and 82965 for similar entries.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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

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: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

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 (🔍)
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: 🔍

Discussion

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