Linux Kernel up to 4.8.2 IP Stack VLAN Packet resource management

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

A vulnerability has been found in Linux Kernel up to 4.8.2 (Operating System) and classified as critical. Affected by this vulnerability is some unknown functionality of the component IP Stack. The manipulation as part of a VLAN Packet leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

The IP stack in the Linux kernel through 4.8.2 allows remote attackers to cause a denial of service (stack consumption and panic) or possibly have unspecified other impact by triggering use of the GRO path for large crafted packets, as demonstrated by packets that contain only VLAN headers, a related issue to CVE-2016-8666.

The weakness was released 10/16/2016 with Redhat (Website). It is possible to read the advisory at openwall.com. This vulnerability is known as CVE-2016-7039 since 08/23/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 93956 (Ubuntu 16.04 LTS : linux vulnerabilities (USN-3099-1)), 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).

Proper firewalling of is able to address this issue. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (93956). Entries connected to this vulnerability are available at 82951, 82953, 82963 and 82965.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.5
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 93956
Nessus Name: Ubuntu 16.04 LTS : linux vulnerabilities (USN-3099-1)
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: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/23/2016 🔍
10/11/2016 +49 days 🔍
10/11/2016 +0 days 🔍
10/11/2016 +0 days 🔍
10/16/2016 +5 days 🔍
10/16/2016 +0 days 🔍
10/17/2016 +1 days 🔍
09/26/2022 +2170 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-3099-1
Organization: Redhat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-7039 (🔍)
SecurityFocus: 93476 - Linux Kernel CVE-2016-7039 Stack Overflow Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 10/17/2016 10:26
Updated: 09/26/2022 10:35
Changes: 10/17/2016 10:26 (66), 05/11/2019 05:50 (14), 09/26/2022 10:23 (3), 09/26/2022 10:29 (1), 09/26/2022 10:35 (1)
Complete: 🔍

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