Linux Kernel 2.6.32.51 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.3$5k-$25k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Linux Kernel 2.6.32.51. This affects an unknown function. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2011-2517. No exploit exists.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.32.51 (Operating System) and classified as critical. This issue affects an unknown code. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Multiple buffer overflows in net/wireless/nl80211.c in the Linux kernel before 2.6.39.2 allow local users to gain privileges by leveraging the CAP_NET_ADMIN capability during scan operations with a long SSID value.

The issue has been introduced in 12/03/2009. The weakness was disclosed 05/24/2012 by Petr Matousek (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2011-2517 since 06/15/2011. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 12/02/2021).

The vulnerability was handled as a non-public zero-day exploit for at least 903 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 56271 (CentOS 5 : kernel (CESA-2011:1212)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195231 (Ubuntu Security Notification for Linux-ti-omap4 Vulnerabilities (USN-1244-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (56271), SecurityFocus (BID 48538†) and Vulnerability Center (SBV-32097†). The entries VDB-4668, VDB-60956, VDB-60949 and VDB-63673 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 9.3

VulDB Base Score: 9.3
VulDB Temp Score: 9.3
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: Memory corruption
CWE: 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: 56271
Nessus Name: CentOS 5 : kernel (CESA-2011:1212)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 880995
OpenVAS Name: CentOS Update for kernel CESA-2011:1212 centos5 i386
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: 🔍

Patch: 208c72f4fe44fe09577e7975ba0e7fa0278f3d03

Timelineinfo

12/03/2009 🔍
06/15/2011 +559 days 🔍
07/01/2011 +16 days 🔍
07/01/2011 +0 days 🔍
07/05/2011 +4 days 🔍
05/24/2012 +324 days 🔍
05/24/2012 +0 days 🔍
03/23/2015 +1033 days 🔍
12/02/2021 +2446 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2011:1212
Researcher: Petr Matousek
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-2517 (🔍)
GCVE (CVE): GCVE-0-2011-2517
GCVE (VulDB): GCVE-100-60827

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 48538 - Linux Kernel SSID Buffer Overflow Vulnerability
Vulnerability Center: 32097 - Linux Kernel 2.6 through 2.6.38-rc2 Local Buffer Overflow Vulnerability, High

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/02/2021 06:35
Changes: 03/23/2015 16:50 (61), 03/25/2017 21:17 (14), 12/02/2021 06:12 (5), 12/02/2021 06:26 (1), 12/02/2021 06:35 (2)
Complete: 🔍
Cache ID: 216:752:103

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