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Linux Kernel ISO9660 Buffer Overflow Privilege Escalation Vulnerability

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Release Date:  2004-04-15    Views:  16,504

Secunia Advisory SA11361

Where:

Local system

Impact:

Privilege escalation

Solution Status:

Vendor Patch

CVE Reference(s):

Description


iDEFENSE has discovered a vulnerability in the Linux kernel, which can be exploited by malicious, local users to gain escalated privileges on a vulnerable system.

The vulnerability is caused due to a boundary error within the ISO9660 ("isofs") file system component when handling symbolic links. This can be exploited to cause a buffer overflow via an overly long symbolic link on e.g. a mounted CDROM.

Successful exploitation may allow arbitrary code execution with root or kernel level privileges.

The vulnerability reportedly affects the 2.4.x, 2.5.x, and 2.6.x kernel branches.


Solution:
Update to Linux kernel versions 2.4.26 and 2.6.6-rc1.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Greg MacManus, iDEFENSE Labs.

Original Advisory:
http://www.idefense.com/application/poi/display?id=101&type=vulnerabilities

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 ISO9660 Buffer Overflow Privilege Escalation Vulnerability

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