Linux Kernel 2.6.39/2.6.39.1/2.6.39.2/2.6.39.3 osf_sysinfo numeric error

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.0$0-$5k0.00

A vulnerability, which was classified as problematic, was found in Linux Kernel 2.6.39/2.6.39.1/2.6.39.2/2.6.39.3 (Operating System). This affects the function osf_sysinfo. 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 availability. The summary by CVE is:

Integer signedness error in the osf_sysinfo function in arch/alpha/kernel/osf_sys.c in the Linux kernel before 2.6.39.4 on the Alpha platform allows local users to obtain sensitive information from kernel memory via a crafted call.

The issue has been introduced in 05/18/2011. The weakness was released 06/13/2012 by Dan Rosenberg (Website). It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2011-2209 since 05/31/2011. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 392 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 56285 (Debian DSA-2310-1 : linux-2.6 - privilege escalation/denial of service/information leak), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks.

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 vulnerability database at Tenable (56285). Entries connected to this vulnerability are available at 56543, 60953, 60952 and 60950.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.0
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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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: 🔍

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Nessus ID: 56285
Nessus Name: Debian DSA-2310-1 : linux-2.6 - privilege escalation/denial of service/information leak
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: 21c5977a836e399fc710ff2c5367845ed5c2527f

Timelineinfo

05/18/2011 🔍
05/31/2011 +13 days 🔍
06/13/2011 +13 days 🔍
07/13/2011 +30 days 🔍
09/25/2011 +74 days 🔍
06/13/2012 +262 days 🔍
06/13/2012 +0 days 🔍
03/23/2015 +1013 days 🔍
12/03/2021 +2447 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: DSA-2310
Researcher: Dan Rosenberg
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-2209 (🔍)
OVAL: 🔍

Vulnerability Center: 33293 - Linux Kernel 2.6 - 2.6.39-rc6 \x27osf_sysinfo()\x27 Local Information Disclosure Vulnerability, Medium
SecurityFocus: 48254 - Linux Kernel Alpha Specific Commands Memory Corruption and Information Disclosure Vulnerabilities

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/03/2021 18:25
Changes: 03/23/2015 16:50 (53), 04/02/2017 12:04 (14), 12/03/2021 18:17 (5), 12/03/2021 18:25 (2)
Complete: 🔍

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