Linux Kernel up to 3.2.13 on Linux net/ipv4/tcp_input.c tcp_rcv_state_process SYN-Flood resource management

CVSS Meta Temp Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 3.2.13 on Linux. It has been declared as problematic. The affected element is the function tcp_rcv_state_process of the file net/ipv4/tcp_input.c. The manipulation results in resource management (SYN-Flood). This vulnerability is known as CVE-2012-6638. Furthermore, an exploit is available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Linux Kernel up to 3.2.13 on Linux (Operating System). It has been classified as critical. Affected is the function tcp_rcv_state_process of the file net/ipv4/tcp_input.c. The manipulation with an unknown input leads to a resource management vulnerability (SYN-Flood). CWE is classifying the issue as CWE-399. This is going to have an impact on availability. CVE summarizes:

The tcp_rcv_state_process function in net/ipv4/tcp_input.c in the Linux kernel before 3.2.24 allows remote attackers to cause a denial of service (kernel resource consumption) via a flood of SYN+FIN TCP packets, a different vulnerability than CVE-2012-2663.

The weakness was published 02/19/2014 by Denys Fedoryshchenko as tcp: drop SYN+FIN messages as confirmed git commit (GIT Repository). The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2012-6638 since 02/15/2014. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a exploit are known.

It is declared as functional. The vulnerability scanner Nessus provides a plugin with the ID 73721 (Oracle Linux 5 : kernel (ELSA-2014-0433)), 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 156825 (Oracle Enterprise Linux Security Update for Kernel (ELSA-2014-0433)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

The vulnerability is also documented in the databases at X-Force (91436), Tenable (73721), SecurityFocus (BID 65654†) and Vulnerability Center (SBV-43343†). Further details are available at secunia.com. Similar entry is available at VDB-10107. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • F5 BIG-IP
  • F5 Firepass
  • F5 TMOS
  • F5 ARX

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: 7.0

VulDB Base Score: 7.5
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Functional

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 73721
Nessus Name: Oracle Linux 5 : kernel (ELSA-2014-0433)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881926
OpenVAS Name: CentOS Update for kernel CESA-2014:0433 centos5
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍
Patch: git.kernel.org

Timelineinfo

02/15/2014 🔍
02/15/2014 +0 days 🔍
02/15/2014 +0 days 🔍
02/15/2014 +0 days 🔍
02/19/2014 +4 days 🔍
02/20/2014 +1 days 🔍
03/06/2014 +14 days 🔍
04/27/2014 +52 days 🔍
06/15/2021 +2606 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: tcp: drop SYN+FIN messages
Researcher: Denys Fedoryshchenko
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-6638 (🔍)
GCVE (CVE): GCVE-0-2012-6638
GCVE (VulDB): GCVE-100-12480

OVAL: 🔍

X-Force: 91436 - Linux Kernel tcp_rcv_state_process denial of service, High Risk
SecurityFocus: 65654 - Linux Kernel 'tcp_rcv_state_process()' Function Denial of Service Vulnerability
Vulnerability Center: 43343 - Linux Kernel before 3.2.24 Remote Denial of Service Vulnerability in tcp_rcv_state_process(), High

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 03/06/2014 11:14
Updated: 06/15/2021 09:08
Changes: 03/06/2014 11:14 (87), 05/21/2017 14:16 (3), 06/15/2021 09:08 (3)
Complete: 🔍
Committer: olku
Cache ID: 216:EDF:103

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