Linux Kernel 2.6.32.51 udp6_ufo_fragment resource management

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel 2.6.32.51 and classified as problematic. The impacted element is the function udp6_ufo_fragment. The manipulation leads to resource management. This vulnerability is traded as CVE-2011-4326. There is no exploit available.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.32.51 (Operating System). It has been rated as critical. This issue affects the function udp6_ufo_fragment. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

The udp6_ufo_fragment function in net/ipv6/udp.c in the Linux kernel before 2.6.39, when a certain UDP Fragmentation Offload (UFO) configuration is enabled, allows remote attackers to cause a denial of service (system crash) by sending fragmented IPv6 UDP packets to a bridge device.

The issue has been introduced in 12/03/2009. The weakness was shared 05/17/2012 (Website). The advisory is shared at github.com. The identification of this vulnerability is CVE-2011-4326. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 896 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 69585 (Amazon Linux AMI : kernel (ALAS-2011-26)), 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 350721 (Amazon Linux Security Advisory for kernel: ALAS-2011-026).

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 (69585), SecurityFocus (BID 50751†) and Vulnerability Center (SBV-33895†). The entries VDB-4416, VDB-5765, VDB-60955 and VDB-60835 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 69585
Nessus Name: Amazon Linux AMI : kernel (ALAS-2011-26)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 863647
OpenVAS Name: Fedora Update for kernel FEDORA-2011-16346
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: a9cf73ea7ff78f52662c8658d93c226effbbedde

Timelineinfo

12/03/2009 🔍
11/04/2011 +700 days 🔍
11/21/2011 +17 days 🔍
11/22/2011 +1 days 🔍
05/17/2012 +177 days 🔍
05/17/2012 +0 days 🔍
03/23/2015 +1040 days 🔍
12/01/2021 +2445 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2011:1465
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-4326 (🔍)
GCVE (CVE): GCVE-0-2011-4326
GCVE (VulDB): GCVE-100-60749

OVAL: 🔍

SecurityFocus: 50751
Vulnerability Center: 33895 - Linux Kernel 2.6.39-rc6 and Earlier Headroom Check Remote Denial of Service Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/01/2021 23:04
Changes: 03/23/2015 16:50 (58), 04/05/2017 14:52 (9), 12/01/2021 22:53 (7), 12/01/2021 23:04 (2)
Complete: 🔍
Cache ID: 216::103

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