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Category:   Application (Generic)  >   QEMU Vendors:   QEMU.org
QEMU SCSI Emulation Buffer Overflow Lets Local Users on a Guest System Cause Denial of Service Conditions on the Host System
SecurityTracker Alert ID:  1033095
SecurityTracker URL:  http://securitytracker.com/id/1033095
CVE Reference:   CVE-2015-5158   (Links to External Site)
Date:  Jul 28 2015
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

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

A local privileged user (with CAP_SYS_RAWIO privileges) on a guest system can issue a specially crafted SCSI command operation code to trigger a stack overflow and cause the target QEMU instance to crash.

System built with SCSI device emulation support are affected.

The vulnerability resides in 'hw/scsi/scsi-bus.c'.

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.
Vendor URL:  wiki.qemu.org/Main_Page (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jul 28 2015 (Ubuntu Issues Fix) QEMU SCSI Emulation Buffer Overflow Lets Local Users on a Guest System Cause Denial of Service Conditions on the Host System
Ubuntu has issued a fix for Ubuntu 14.04 LTS and 15.04.



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