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Insecure Library Loading
Not critical

util-linux Privilege Escalation Vulnerability

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Release Date:  2007-10-09    Views:  11,117

Secunia Advisory SA27145

Where:

Local system

Impact:

Privilege escalation

Solution Status:

Vendor Workaround

Software:

CVE Reference(s):

Description


A vulnerability has been reported in util-linux, which potentially can be exploited by malicious, local users to perform certain actions with escalated privileges.

The vulnerability is caused due to the mount and umount programs incorrectly checking the return values of the "setuid()" and "setgid()" functions when dropping privileges. This can potentially be exploited to perform certain actions with escalated privileges via e.g. the mount.nfs utility.

The vulnerability is reported in version 2.12r. Other versions may also be affected.


Solution:
Fixed in the util-linux-ng repository.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Ludwig Nussel

Original Advisory:
http://git.kernel.org/?p=utils/util-linux-ng/util-linux-ng.git;a=commit;h=ebbeb2c7ac1b00b6083905957837a271e80b187e

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: util-linux Privilege Escalation Vulnerability

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