Linux Kernel 3.11.6 drivers/video/au1100fb.c au1100fb_fb_rotate numeric error

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.09

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel 3.11.6. Impacted is the function au1100fb_fb_rotate of the file drivers/video/au1100fb.c. The manipulation leads to numeric error. This vulnerability is traded as CVE-2013-4511. There is no exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Linux Kernel 3.11.6 (Operating System). It has been rated as critical. This issue affects the function au1100fb_fb_rotate of the file drivers/video/au1100fb.c. The manipulation with an unknown input leads to a numeric error vulnerability. Using CWE to declare the problem leads to CWE-189. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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 shared 10/29/2013 by Fabian Yamaguchi and Nico Golde as Subject: Re: some unstracked linux kernel security fixes as confirmed advisory (oss-sec). It is possible to read the advisory at openwall.com. The vendor cooperated in the coordination of the public release. The identification of this vulnerability is CVE-2013-4511 since 06/12/2013. The exploitation is known to be difficult. Attacking locally is a requirement. The successful exploitation needs a simple authentication. Technical details of the vulnerability are known, but there is no available exploit.

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 and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195877 (Ubuntu Security Notification for Linux Vulnerabilities (USN-2036-1)).

Applying the patch Fix a few incorrectly checked [io_]remap_pfn_range() calls 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 Tenable (75252), SecurityFocus (BID 63512†) and OSVDB (99674†). The entries VDB-11158, VDB-11160 and VDB-60752 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 75252
Nessus Name: openSUSE Security Update : kernel (openSUSE-SU-2014:0205-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
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: Fix a few incorrectly checked [io_]remap_pfn_range() calls

Timelineinfo

06/12/2013 🔍
10/29/2013 +139 days 🔍
10/29/2013 +0 days 🔍
10/29/2013 +0 days 🔍
11/12/2013 +14 days 🔍
11/15/2013 +3 days 🔍
06/13/2014 +210 days 🔍
05/01/2019 +1783 days 🔍

Sourcesinfo

Vendor: kernel.org

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

CVE: CVE-2013-4511 (🔍)
GCVE (CVE): GCVE-0-2013-4511
GCVE (VulDB): GCVE-100-11159

OVAL: 🔍

SecurityFocus: 63512 - Linux Kernel CVE-2013-4511 Multiple Integer Overflow Vulnerabilities
OSVDB: 99674

See also: 🔍

Entryinfo

Created: 11/15/2013 14:53
Updated: 05/01/2019 09:26
Changes: 11/15/2013 14:53 (77), 05/01/2019 09:26 (3)
Complete: 🔍
Committer:
Cache ID: 216:B1E:103

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