Linux Kernel 3.0.33 ecryptfs_mount access control

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Linux Kernel 3.0.33 (Operating System). It has been declared as problematic. This vulnerability affects the function ecryptfs_mount. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, and integrity. CVE summarizes:

Race condition in the ecryptfs_mount function in fs/ecryptfs/main.c in the eCryptfs subsystem in the Linux kernel before 3.1 allows local users to bypass intended file permissions via a mount.ecryptfs_private mount with a mismatched uid.

The weakness was published 10/03/2012 by Marc Deslauriers (Website). The advisory is available at This vulnerability was named CVE-2011-1833 since 04/27/2011. Local access is required to approach this attack. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 69575 (Amazon Linux AMI : kernel (ALAS-2011-16)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 216036 (VMware ESXi and ESX Third Party Libraries Updates (VMSA-2012-0013)).

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 X-Force (69144) and Tenable (69575). Similar entries are available at 4416, 5260, 56641 and 60957.







CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.1
VulDB Temp Score: 5.1
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Class: Access control
CWE: CWE-264
ATT&CK: T1068

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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Nessus ID: 69575
Nessus Name: Amazon Linux AMI : kernel (ALAS-2011-16)
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OpenVAS ID: 892443
OpenVAS Name: Debian Security Advisory DSA 2443-1 (linux-2.6 - privilege escalation/denial of service
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Threat Intelligenceinfo

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Recommended: no mitigation known
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04/27/2011 🔍
08/10/2011 +105 days 🔍
08/10/2011 +0 days 🔍
08/17/2011 +7 days 🔍
10/03/2012 +413 days 🔍
10/03/2012 +0 days 🔍
09/04/2013 +336 days 🔍
03/24/2015 +566 days 🔍
12/14/2021 +2457 days 🔍



Advisory: USN-1188-1
Researcher: Marc Deslauriers
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-1833 (🔍)

X-Force: 69144
Vulnerability Center: 32754 - Linux Kernel eCryptfs 2.6-3.0.1 Local Information Disclosure Vulnerability, Low
SecurityFocus: 49108 - Linux Kernel eCryptfs Multiple Vulnerabilities

See also: 🔍


Created: 03/24/2015 12:22 PM
Updated: 12/14/2021 03:56 PM
Changes: 03/24/2015 12:22 PM (56), 03/30/2017 09:27 AM (21), 12/14/2021 03:50 PM (4), 12/14/2021 03:56 PM (1)
Complete: 🔍


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