[SA12498] Linux Kernel ide-cd SG_IO Functionality Permission Bypass Vulnerability

Type securityvulns
Reporter Securityvulns
Modified 2004-09-28T00:00:00


TITLE: Linux Kernel ide-cd SG_IO Functionality Permission Bypass Vulnerability


VERIFY ADVISORY: http://secunia.com/advisories/12498/

CRITICAL: Less critical

IMPACT: Security Bypass

WHERE: Local system

OPERATING SYSTEM: Linux Kernel 2.6.x http://secunia.com/product/2719/ Linux Kernel 2.4.x http://secunia.com/product/763/

DESCRIPTION: A vulnerability has been reported in the Linux Kernel, which can be exploited by malicious, local users to bypass certain security restrictions.

The vulnerability is caused due to an unspecified error within the ide-cd SG_IO functionality. This allows a user with read-only access to bypass these permissions and perform write and erase operations on media in a drive.

SOLUTION: Grant only trusted users access to CD-writers.

ORIGINAL ADVISORY: http://lkml.org/lkml/2004/7/30/147

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