Security Advisory SA22731 - Linux Kernel Fragmented IPv6 Packet Filtering Bypass

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Secunia Advisory SA22731

Linux Kernel Fragmented IPv6 Packet Filtering Bypass

Secunia Advisory

SA22731

Release Date

2006-11-07

Popularity

15,886 views

Comments

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Criticality level

Moderately critical

Impact

Security Bypass

Where

From remote

Authentication level

This information is available to Secunia VIM customers

Report reliability

This information is available to Secunia VIM customers

Solution Status

Vendor Workaround

Systems affected

This information is available to Secunia VIM customers

Approve distribution

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Operating System

Linux Kernel 2.6.x

Secunia CVSS Score

This information is available to Secunia VIM Customers

CVE Reference(s)

CVE-2006-4572 CVSS score available to Secunia VIM customers

Description

Some vulnerabilities have been reported in the Linux Kernel, which can be exploited by malicious people to bypass certain security restrictions.

The vulnerabilities are caused due to the incorrect processing of certain fragmented IPv6 packets. This can be exploited to bypass filtering rules by sending specially crafted packets.

Solution
Fixed in the GIT repository.
Further details available to Secunia VIM customers

Provided and/or discovered by
The vendor credits Marc Dowd, McAfee

Original Advisory
http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=51d8b1a65291a6956b79374b6adbbadc2263bcf6
http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6d381634d213580d40d431e7664dfb45f641b884

Deep Links
Links available to Secunia VIM customers

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Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Linux Kernel Fragmented IPv6 Packet Filtering Bypass

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Secunia Advisory SA22731

Linux Kernel Fragmented IPv6 Packet Filtering Bypass

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