Linux Kernel up to denial of service

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Linux Kernel (Operating System). It has been classified as problematic. This affects an unknown part. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

net/ipv4/ip_gre.c in the Linux kernel before 2.6.34, when ip_gre 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 published 06/13/2012 by Alexey Dobriyan (Website). The advisory is shared at This vulnerability is uniquely identified as CVE-2011-1767 since 04/19/2011. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around 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 68305 (Oracle Linux 6 : kernel (ELSA-2011-0928)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux 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 databases at X-Force (67460), Tenable (68305), SecurityFocus (BID 47852†) and Vulnerability Center (SBV-32222†).







CPE 2.3info

CPE 2.2info


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

VulDB Base Score: 5.9
VulDB Temp Score: 5.9
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Class: Denial of service
CWE: CWE-404

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

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Current Price Estimation: 🔍


Nessus ID: 68305
Nessus Name: Oracle Linux 6 : kernel (ELSA-2011-0928)
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OpenVAS ID: 69970
OpenVAS Name: Debian Security Advisory DSA 2264-1 (linux-2.6)
OpenVAS File: 🔍
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Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: c2892f02712e9516d72841d5c019ed6916329794


02/24/2010 🔍
04/19/2011 +419 days 🔍
05/16/2011 +27 days 🔍
06/28/2011 +43 days 🔍
07/12/2011 +14 days 🔍
06/13/2012 +337 days 🔍
06/13/2012 +0 days 🔍
07/12/2013 +394 days 🔍
03/23/2015 +619 days 🔍
12/03/2021 +2447 days 🔍



Advisory: RHSA-2011:0928
Researcher: Alexey Dobriyan
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1767 (🔍)

X-Force: 67460
SecurityFocus: 47852 - Linux Kernel 'IP GRE' Module NULL Pointer Dereference Denial of Service Vulnerability
Vulnerability Center: 32222 - Linux Kernel 2.6.39-rc6 and prior Local Denial of Service Vulnerability via a Crafted Packet, Low


Created: 03/23/2015 04:50 PM
Updated: 12/03/2021 05:02 PM
Changes: 03/23/2015 04:50 PM (63), 03/27/2017 09:15 AM (12), 12/03/2021 04:54 PM (5), 12/03/2021 05:02 PM (2)
Complete: 🔍
Cache ID: 44:AB8:40


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