Google Android Kernel Networking Subsystem use after free

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as very critical, has been found in Google Android. Affected by this issue is some unknown functionality of the component Kernel Networking Subsystem. The manipulation leads to use after free. This vulnerability is traded as CVE-2016-6828. An attack has to be approached locally. Furthermore, there is an exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Google Android (Smartphone Operating System) (affected version unknown) and classified as critical. This issue affects an unknown functionality of the component Kernel Networking Subsystem. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The weakness was shared 11/07/2016 by Marco Grassi as Android Security Bulletin - November 2016 as confirmed security bulletin (Website). It is possible to read the advisory at source.android.com. The identification of this vulnerability is CVE-2016-6828 since 08/17/2016. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 93089 (Fedora 23 : kernel (2016-723350dd75)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276138 (Fedora Security Update for kernel (FEDORA-2016-2e5ebfed6d)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (40731), Tenable (93089) and SecurityFocus (BID 92452†). The entries VDB-92730, VDB-93466, VDB-93476 and VDB-93458 are related to this item. Be aware that VulDB is the high quality source for 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: 5.2

VulDB Base Score: 5.5
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 93089
Nessus Name: Fedora 23 : kernel (2016-723350dd75)
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: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: git.kernel.org

Timelineinfo

08/15/2016 🔍
08/17/2016 +2 days 🔍
08/24/2016 +7 days 🔍
10/16/2016 +53 days 🔍
11/07/2016 +22 days 🔍
11/07/2016 +0 days 🔍
11/09/2016 +2 days 🔍
10/05/2024 +2887 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: Android Security Bulletin - November 2016
Researcher: Marco Grassi
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-6828 (🔍)
GCVE (CVE): GCVE-0-2016-6828
GCVE (VulDB): GCVE-100-93479

OVAL: 🔍

SecurityFocus: 92452 - Linux Kernel 'tcp_xmit_retransmit_queue()' Function Use After Free Denial of Service Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 11/09/2016 14:43
Updated: 10/05/2024 19:52
Changes: 11/09/2016 14:43 (70), 05/28/2019 09:34 (11), 09/30/2022 14:39 (5), 10/05/2024 19:52 (23)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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