Linux Kernel 2.6.32.51 sctp_sock_migrate null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

A vulnerability was found in Linux Kernel 2.6.32.51 (Operating System). It has been declared as critical. Affected by this vulnerability is the function sctp_sock_migrate. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

A certain Red Hat patch to the sctp_sock_migrate function in net/sctp/socket.c in the Linux kernel before 2.6.21, as used in Red Hat Enterprise Linux (RHEL) 5, allows remote attackers to cause a denial of service (NULL pointer dereference and OOPS) via a crafted SCTP packet.

The issue has been introduced in 12/03/2009. The weakness was shared 06/08/2013 by Darren Lavender (GitHub Repository). The advisory is shared at github.com. This vulnerability is known as CVE-2011-2482 since 06/15/2011. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/03/2022).

The vulnerability was handled as a non-public zero-day exploit for at least 1283 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 68334 (Oracle Linux 5 : kernel (ELSA-2011-1212)), 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 216031 (VMware ESX 4.x Several Security Vulnerabilities (VMSA-2012-0006)).

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 (68334). The entries 4406, 4504, 4545 and 5529 are related to this item.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 68334
Nessus Name: Oracle Linux 5 : kernel (ELSA-2011-1212)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 880995
OpenVAS Name: CentOS Update for kernel CESA-2011:1212 centos5 i386
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: ea2bc483ff5caada7c4aa0d5fbf87d3a6590273d

Timelineinfo

12/03/2009 🔍
06/15/2011 +559 days 🔍
08/23/2011 +69 days 🔍
08/30/2011 +7 days 🔍
08/31/2011 +1 days 🔍
06/08/2013 +647 days 🔍
06/08/2013 +0 days 🔍
07/12/2013 +34 days 🔍
03/24/2015 +620 days 🔍
01/03/2022 +2477 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2011:1212
Researcher: Darren Lavender
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-2482 (🔍)
OVAL: 🔍
IAVM: 🔍

Vulnerability Center: 32893 - Linux kernel 2.6.x Remote DoS Vulnerability via Crafted SCTP Packets, Medium
SecurityFocus: 49295 - Linux Kernel 'CIFSFindNext()' Function Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/03/2022 08:59
Changes: 03/24/2015 15:54 (65), 04/07/2017 18:27 (13), 01/03/2022 08:55 (4), 01/03/2022 08:56 (11), 01/03/2022 08:59 (2)
Complete: 🔍
Cache ID: 18:119:103

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