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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel VHOST_SCSI_SET_ENDPOINT Call Array Index Error Lets Local Users on a Guest System Cause Denial of Service Conditions on the Host System
SecurityTracker Alert ID:  1033729
SecurityTracker URL:  http://securitytracker.com/id/1033729
CVE Reference:   CVE-2015-4036   (Links to External Site)
Date:  Oct 2 2015
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in the Linux Kernel. A local user on the guest system can cause denial of service conditions on the host system.

A local user on the guest system can submit a specially crafted VHOST_SCSI_SET_ENDPOINT ioctl call to trigger an array index error in the tcm_vhost_make_tpg() function in 'drivers/vhost/scsi.c'and cause denial of service conditions on the host system.

Impact:   A local user on the guest system can cause denial of service conditions on the host system.
Solution:   The vendor has issued a source code fix, available at:

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=59c816c1f24df0204e01851431d3bab3eb76719c

Vendor URL:  www.kernel.org/ (Links to External Site)
Cause:   Access control error

Message History:   None.


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