James McKenzie has reported a vulnerability in Linux Kernel, which can be exploited by malicious users to cause a DoS (Denial of Service).
The vulnerability is caused due to an error in ext3 when handling an invalid inode number. This can be exploited by sending a specially crafted NFS request with a V2 procedure (e.g. V2_LOOKUP) that specifies an invalid inode number.
Successful exploitation causes the exported directory to be remounted read-only.
The vulnerability has been reported in versions 188.8.131.52, 184.108.40.206, and 220.127.116.11. Other versions may also be affected.
Solution: A patch is committed to the GIT repository.
Provided and/or discovered by: James McKenzie
Original Advisory: http://lkml.org/lkml/2006/7/17/41
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 email@example.com
Subject: Linux Kernel Ext3 Invalid Inode Number Denial of Service
No posts yet
You must be logged in to post a comment.
Secunia Customer Login
Not a customer already?
Learn more about how our market leading Vulnerability Management solutions can help you manage risk and ensure compliance.