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Linux Kernel Multiple Vulnerabilities

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Release Date:  2008-05-02    Last Update:  2008-05-07    Views:  14,695

Secunia Advisory SA30044

Where:

From local network

Impact:

Privilege escalation, DoS

Solution Status:

Vendor Patch

Operating System:

CVE Reference(s):

Description


Some vulnerabilities have been reported in the Linux kernel, which can be exploited by malicious people to cause a DoS (Denial of Service), and by malicious, local users to cause a DoS or to potentially gain escalated privileges.

1) A race condition error exists in the dnotify subsystem between calls to "fcntl()" and "close()". This can be exploited to cause a system crash or potentially gain root privileges.

2) A boundary error in the Tehuti network driver can be exploited to corrupt kernel memory via specially crafted "BDX_OP_WRITE" IOCTL calls.

The vulnerabilities are reported in versions prior to 2.6.25.1.

3) An error exists in the implementation of the IPsec protocol. This can be exploited to crash an affected system via fragmented ESP packets.

Successful exploitation of the vulnerability requires the ability to manipulate network packets sent from an authenticated IPsec peer.

This vulnerability is reported in versions prior to 2.6.25.


Solution:
Update to version 2.6.25.1.

Provided and/or discovered by:
1, 2) Reported by the vendor.
3) Dirk Nehring

Original Advisory:
Linux Kernel:
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.1
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25

Dirk Nehring:
http://marc.info/?l=linux-netdev&m=120372380411259&w=2

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

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 Multiple Vulnerabilities

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