Google Android Kernel Security 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 categorized as critical has been discovered in Google Android. Affected is an unknown function of the component Kernel Security Subsystem. Such manipulation leads to use after free. This vulnerability is uniquely identified as CVE-2013-7446. Local access is required to approach this attack. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Google Android (Smartphone Operating System) (affected version unknown). Affected by this issue is an unknown functionality of the component Kernel Security 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. CVE summarizes:

Use-after-free vulnerability in net/unix/af_unix.c in the Linux kernel before 4.3.3 allows local users to bypass intended AF_UNIX socket permissions or cause a denial of service (panic) via crafted epoll_ctl calls.

The weakness was disclosed 09/06/2016 as Android Security Bulletin - September 2016 as confirmed security bulletin (Website). The advisory is available at source.android.com. This vulnerability is handled as CVE-2013-7446 since 11/18/2015. Local access is required to approach this attack. The successful exploitation needs a simple authentication. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 93278 (SUSE SLES12 Security Update : kernel (SUSE-SU-2016:2006-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169069 (SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2016:2074-1)).

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 (93278) and SecurityFocus (BID 77638†). The entries VDB-75137, VDB-77323, VDB-78716 and VDB-79118 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
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: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 93278
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2016:2006-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703426
OpenVAS Name: Debian Security Advisory DSA 3426-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Patch: git.kernel.org

Timelineinfo

09/10/2015 🔍
11/18/2015 +69 days 🔍
12/27/2015 +39 days 🔍
09/02/2016 +249 days 🔍
09/06/2016 +4 days 🔍
09/06/2016 +0 days 🔍
09/11/2016 +5 days 🔍
09/15/2022 +2195 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: Android Security Bulletin - September 2016
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-7446 (🔍)
GCVE (CVE): GCVE-0-2013-7446
GCVE (VulDB): GCVE-100-91442

OVAL: 🔍

SecurityFocus: 77638 - Linux kernel CVE-2013-7446 Use After Free Denial of Service Vulnerability
SecurityTracker: 1034557

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

Entryinfo

Created: 09/11/2016 12:29
Updated: 09/15/2022 14:30
Changes: 09/11/2016 12:29 (68), 04/14/2019 09:31 (13), 09/15/2022 14:30 (5)
Complete: 🔍
Cache ID: 216:31B:103

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