CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.4	$0-$5k	0.00

A vulnerability classified as critical has been found in Linux Kernel 3.11.6 (Operating System). Affected is the function au1200fb_fb_blank of the file drivers/video/au1200fb.c. The manipulation with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Multiple integer overflows in Alchemy LCD frame-buffer drivers in the Linux kernel before 3.12 allow local users to create a read-write memory mapping for the entirety of kernel memory, and consequently gain privileges, via crafted mmap operations, related to the (1) au1100fb_fb_mmap function in drivers/video/au1100fb.c and the (2) au1200fb_fb_mmap function in drivers/video/au1200fb.c.

The weakness was published 10/29/2013 by Nico Golde and Fabian Yamaguchi as some unstracked linux kernel security fixes as confirmed mailinglist post (oss-sec). The advisory is shared for download at seclists.org. The public release has been coordinated with the vendor. This vulnerability is traded as CVE-2013-4511 since 06/12/2013. The exploitability is told to be difficult. The attack needs to be approached locally. A authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 75252 (openSUSE Security Update : kernel (openSUSE-SU-2014:0205-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195877 (Ubuntu Security Notification for Linux Vulnerabilities (USN-2036-1)).

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 vulnerability database at Tenable (75252). Similar entries are available at 11089, 11090, 11092 and 11093.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 3.11.6

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 75252
Nessus Name: openSUSE Security Update : kernel (openSUSE-SU-2014:0205-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 850566
OpenVAS Name: SuSE Update for kernel openSUSE-SU-2014:0204-1 (kernel)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: git.kernel.org

Timelineinfo

06/12/2013 🔍
10/29/2013 +139 days 🔍
10/29/2013 +0 days 🔍
11/04/2013 +6 days 🔍
11/06/2013 +2 days 🔍
11/12/2013 +6 days 🔍
11/15/2013 +3 days 🔍
06/13/2014 +210 days 🔍
06/02/2021 +2546 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: some unstracked linux kernel security fixes
Researcher: Nico Golde, Fabian Yamaguchi
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-4511 (🔍)
OVAL: 🔍

Vulnerability Center: 42194 - Linux Kernel 3.3.5 and Prior Local Code Execution Vulnerability due to Integer Overflow in \x27remap_pfn_range()\x27, High
SecurityFocus: 63512
OSVDB: 99675

See also: 🔍

Entryinfo

Created: 11/15/2013 15:05
Updated: 06/02/2021 08:41
Changes: 11/15/2013 15:05 (79), 05/15/2017 08:01 (1), 06/02/2021 08:41 (3)
Complete: 🔍

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