Linux · Linux Kernel · CVE-2010-4238
**Name of the Vulnerable Software and Affected Versions**
Xen version 3.1.2
Linux kernel version 2.6.18 on Red Hat Enterprise Linux (RHEL) 5
**Description**
The issue allows guest OS users to cause a denial of service, resulting in a host OS panic. This occurs when there is an attempted access to a virtual CD-ROM device through the blkback driver, involving the `vbd create` function.
**Recommendations**
For Xen version 3.1.2, consider restricting access to the virtual CD-ROM device to prevent the denial of service.
For Linux kernel version 2.6.18 on Red Hat Enterprise Linux (RHEL) 5, avoid using the blkback driver until a fix is available.
At the moment, there is no information about a newer version that contains a fix for this issue.