Linux Kernel 2.6.39/2.6.39.1/2.6.39.2/2.6.39.3 osf_wait4 access control

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 2.6.39/2.6.39.1/2.6.39.2/2.6.39.3. This affects the function osf_wait4. The manipulation leads to access control. This vulnerability is listed as CVE-2011-2211. There is no available exploit.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.39/2.6.39.1/2.6.39.2/2.6.39.3 (Operating System) and classified as critical. This issue affects the function osf_wait4. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The osf_wait4 function in arch/alpha/kernel/osf_sys.c in the Linux kernel before 2.6.39.4 on the Alpha platform uses an incorrect pointer, which allows local users to gain privileges by writing a certain integer value to kernel memory.

The issue has been introduced in 05/18/2011. The weakness was presented 06/13/2012 by Dan Rosenberg (Website). The advisory is shared at github.com. The identification of this vulnerability is CVE-2011-2211 since 05/31/2011. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 12/03/2021). MITRE ATT&CK project uses the attack technique T1068 for this issue.

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 $5k-$25k. 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 databases at Tenable (56285), SecurityFocus (BID 48254†) and Vulnerability Center (SBV-33294†). See VDB-56543, VDB-60952, VDB-60951 and VDB-60950 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
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: 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 🔍
06/13/2011 +0 days 🔍
09/25/2011 +104 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-2011-2211 (🔍)
GCVE (CVE): GCVE-0-2011-2211
GCVE (VulDB): GCVE-100-60953

OVAL: 🔍

SecurityFocus: 48254 - Linux Kernel Alpha Specific Commands Memory Corruption and Information Disclosure Vulnerabilities
Vulnerability Center: 33294 - Linux Kernel 2.6- 2.6.39-rc6 \x27osf_wwait4\x27 Local Privilege Escalation Vulnerability, High

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/03/2021 18:48
Changes: 03/23/2015 16:50 (53), 04/02/2017 12:04 (14), 12/03/2021 18:40 (5), 12/03/2021 18:48 (2)
Complete: 🔍
Cache ID: 216:736:103

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