Google Android on Nexus Kernel Networking use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Google Android on Nexus. It has been declared as critical. This affects an unknown function of the component Kernel Networking. The manipulation results in use after free. This vulnerability is identified as CVE-2016-3841. The attack is only possible with local access. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Google Android on Nexus (Smartphone Operating System) (version now known). Affected is some unknown processing of the component Kernel Networking. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The IPv6 stack in the Linux kernel before 4.3.3 mishandles options data, which allows local users to gain privileges or cause a denial of service (use-after-free and system crash) via a crafted sendmsg system call.

The weakness was released 08/01/2016 with Google as Android Security Bulletin - August 2016 as confirmed security bulletin (Website). The advisory is shared for download at source.android.com. This vulnerability is traded as CVE-2016-3841 since 03/30/2016. The exploitability is told to be easy. The attack needs to be approached locally. Required for exploitation is a authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/12/2022). It is expected to see the exploit prices for this product increasing in the near future.

The vulnerability scanner Nessus provides a plugin with the ID 93603 (Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-3083-2)), 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 157890 (Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2019-4316)).

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

The vulnerability is also documented in the databases at Tenable (93603) and SecurityFocus (BID 92227†). Entries connected to this vulnerability are available at VDB-90455, VDB-90456, VDB-90457 and VDB-90458. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.3
NVD Vector: 🔍

CVSSv2info

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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: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 93603
Nessus Name: Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-3083-2)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 54742
OpenVAS Name: Ubuntu Update for linux-lts-trusty USN-3083-2
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: 🔍

Patch: git.kernel.org

Timelineinfo

03/30/2016 🔍
08/01/2016 +124 days 🔍
08/01/2016 +0 days 🔍
08/01/2016 +0 days 🔍
08/06/2016 +5 days 🔍
08/06/2016 +0 days 🔍
09/20/2016 +45 days 🔍
09/12/2022 +2183 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: Android Security Bulletin - August 2016
Organization: Google
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-3841 (🔍)
GCVE (CVE): GCVE-0-2016-3841
GCVE (VulDB): GCVE-100-90516
SecurityFocus: 92227 - Linux Kernel CVE-2016-3841 Multiple Privilege Escalation Vulnerabilities

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

Entryinfo

Created: 08/06/2016 14:02
Updated: 09/12/2022 09:55
Changes: 08/06/2016 14:02 (70), 03/20/2019 14:02 (13), 09/12/2022 09:55 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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