Google Android 4.1.2 USB Debugging Mode drivers/video/fbmem.c fb_mmap numeric error

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

Summaryinfo

A vulnerability marked as problematic has been reported in Google Android 4.1.2. Affected is the function fb_mmap of the file drivers/video/fbmem.c of the component USB Debugging Mode. This manipulation causes numeric error. This vulnerability is registered as CVE-2013-2596. Furthermore, an exploit is available.

Detailsinfo

A vulnerability classified as critical was found in Google Android 4.1.2 (Smartphone Operating System). Affected by this vulnerability is the function fb_mmap of the file drivers/video/fbmem.c of the component USB Debugging Mode. The manipulation with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Integer overflow in the fb_mmap function in drivers/video/fbmem.c in the Linux kernel before 3.8.9, as used in a certain Motorola build of Android 4.1.2 and other products, allows local users to create a read-write memory mapping for the entirety of kernel memory, and consequently gain privileges, via crafted /dev/graphics/fb0 mmap2 system calls, as demonstrated by the Motochopper pwn program.

The weakness was published 04/09/2013 by Dan Rosenberg as not defined exploit (Website). The advisory is shared at droidrzr.com. The public release happened without involvement of Google. This vulnerability is known as CVE-2013-2596 since 03/15/2013. The exploitation appears to be difficult. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

After immediately, there has been an exploit disclosed. It is possible to download the exploit at droid-life.com. It is declared as attacked. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 78580 (Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2014-3083)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124918 (CentOS Security Update for kernel (CESA-2016:0450)). The CISA Known Exploited Vulnerabilities Catalog lists this issue since 09/15/2022 with a due date of 10/06/2022:

Apply updates per vendor instructions.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

The vulnerability is also documented in the databases at X-Force (83614), Tenable (78580), EUVD (EUVD-2013-2538), SecurityFocus (BID 63445†) and OSVDB (92267†). Similar entry is available at VDB-73930. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.4
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Attacked
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 78580
Nessus Name: Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2014-3083)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 80056
OpenVAS Name: Oracle Linux Local Check: ELSA-2016-0450
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Patch: git.kernel.org

Timelineinfo

03/15/2013 🔍
04/09/2013 +25 days 🔍
04/09/2013 +0 days 🔍
04/09/2013 +0 days 🔍
04/12/2013 +3 days 🔍
04/17/2013 +5 days 🔍
10/30/2013 +196 days 🔍
10/20/2014 +355 days 🔍
10/28/2014 +8 days 🔍
07/30/2025 +3928 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: droidrzr.com
Researcher: Dan Rosenberg
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-2596 (🔍)
GCVE (CVE): GCVE-0-2013-2596
GCVE (VulDB): GCVE-100-8425
EUVD: 🔍

OVAL: 🔍

X-Force: 83614
SecurityFocus: 63445 - Linux Kernel 'ipc_rcu_putref()' Function Local Denial of Service Vulnerability
OSVDB: 92267
Vulnerability Center: 46817 - Linux Kernel Prior to 3.8.9 Local Host Privilege via mmap2 System Calls, Medium

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

Entryinfo

Created: 04/17/2013 18:02
Updated: 07/30/2025 06:21
Changes: 04/17/2013 18:02 (81), 06/10/2017 09:43 (6), 05/08/2021 16:23 (3), 04/27/2024 17:28 (29), 06/28/2024 21:59 (12), 09/09/2024 22:30 (1), 07/30/2025 06:21 (3)
Complete: 🔍
Committer:
Cache ID: 216:AF6:103

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