Linux Kernel up to 3.5.4 on ARM v6k/v7 API Function get_user/put_user input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Linux Kernel up to 3.5.4 on ARM v6k/v7. The affected element is the function get_user/put_user of the component API Function Handler. The manipulation results in input validation. This vulnerability is identified as CVE-2013-6282. Additionally, an exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 3.5.4 on ARM v6k/v7 (Operating System). Affected is the function get_user/put_user of the component API Function Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addresses, which allows attackers to read or modify the contents of arbitrary kernel memory locations via a crafted application, as exploited in the wild against Android devices in October and November 2013.

The weakness was released 09/09/2012 as QCIR-2013-00010-1 as confirmed advisory (Website). The advisory is available at codeaurora.org. This vulnerability is traded as CVE-2013-6282 since 10/25/2013. Local access is required to approach this attack. The requirement for exploitation is a authentication. Technical details and a public exploit are known.

A public exploit has been developed by Piotr Szerman and been published 2 years after the advisory. The exploit is shared for download at exploit-db.com. It is declared as attacked. As 0-day the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195830 (Ubuntu Security Notification for Linux-ti-omap4 Vulnerabilities (USN-2067-1)). This issue was added on 09/15/2022 to the CISA Known Exploited Vulnerabilities Catalog 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. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (31574), Zero-Day.cz (253), SecurityFocus (BID 63734†), OSVDB (99940†) and Vulnerability Center (SBV-42323†). Entry connected to this vulnerability is available at VDB-11224. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 8.8
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Author: Piotr Szerman
Download: 🔍

EPSS Score: 🔍
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KEV Added: 🔍
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KEV Ransomware: 🔍
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Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 841674
OpenVAS Name: Ubuntu Update for linux-ti-omap4 USN-2067-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: put_user_vroot.rb
MetaSploit Name: Android get_user/put_user Exploit
MetaSploit File: 🔍

Exploit-DB: 🔍
Zero-Day.cz: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Exploit Delay Time: 🔍

Patch: git.kernel.org

Timelineinfo

09/09/2012 🔍
09/09/2012 +0 days 🔍
10/25/2013 +411 days 🔍
11/14/2013 +19 days 🔍
11/14/2013 +0 days 🔍
11/18/2013 +4 days 🔍
11/20/2013 +2 days 🔍
11/22/2013 +2 days 🔍
02/11/2014 +81 days 🔍
02/11/2014 +0 days 🔍
02/04/2025 +4011 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: QCIR-2013-00010-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-6282 (🔍)
GCVE (CVE): GCVE-0-2013-6282
GCVE (VulDB): GCVE-100-11226

OVAL: 🔍

SecurityFocus: 63734
OSVDB: 99940
Vulnerability Center: 42323 - Linux Kernel Local Privilege Memory Access and Security Bypass Vulnerability via get_user and put_user API Functions on ARM, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 11/22/2013 09:41
Updated: 02/04/2025 21:10
Changes: 11/22/2013 09:41 (72), 05/15/2017 11:37 (12), 06/02/2021 11:16 (4), 04/27/2024 17:38 (24), 07/13/2024 18:50 (2), 09/09/2024 22:30 (1), 12/20/2024 05:18 (1), 02/03/2025 18:57 (11), 02/04/2025 21:10 (11)
Complete: 🔍
Cache ID: 216:699:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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