Linux Kernel up to 2.6.33.20 race condition

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.9$0-$5k0.00

A vulnerability was found in Linux Kernel (Operating System). It has been declared as problematic. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect availability. CVE summarizes:

The tunnels implementation in the Linux kernel before 2.6.34, when tunnel functionality is configured as a module, allows remote attackers to cause a denial of service (OOPS) by sending a packet during module loading.

The issue has been introduced in 02/24/2010. The weakness was released 06/13/2012 by Alexey Dobriyan (Website). The advisory is available at github.com. This vulnerability was named CVE-2011-1768. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 12/03/2021).

The vulnerability was handled as a non-public zero-day exploit for at least 840 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 55170 (Debian DSA-2264-1 : 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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195209 (Ubuntu Security Notification for Linux Vulnerabilities (USN-1268-1)).

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 vulnerability database at Tenable (55170). Entry connected to this vulnerability is available at 60945.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.9
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 55170
Nessus Name: Debian DSA-2264-1 : linux-2.6 - privilege escalation/denial of service/information leak
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 69970
OpenVAS Name: Debian Security Advisory DSA 2264-1 (linux-2.6)
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: d5aa407f59f5b83d2c50ec88f5bf56d40f1f8978

Timelineinfo

02/24/2010 🔍
04/19/2011 +418 days 🔍
05/16/2011 +27 days 🔍
05/16/2011 +0 days 🔍
05/17/2011 +1 days 🔍
06/13/2012 +393 days 🔍
06/13/2012 +0 days 🔍
03/23/2015 +1013 days 🔍
12/03/2021 +2447 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: DSA-2264
Researcher: Alexey Dobriyan
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1768 (🔍)
OVAL: 🔍

Vulnerability Center: 31458 - Linux Kernel 2.6.0 through 2.6.33-Rc7 \x27tunnels\x27 Access Violation Allows Remote DoS, High
SecurityFocus: 47853 - Linux Kernel Tunnels Initialization Remote Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/03/2021 17:17
Changes: 03/23/2015 16:50 (58), 03/22/2017 09:55 (12), 12/03/2021 17:09 (7), 12/03/2021 17:17 (2)
Complete: 🔍

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