Description
The vbd_create function in Xen 3.1.2, when the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5 is used, allows guest OS users to cause a denial of service (host OS panic) via an attempted access to a virtual CD-ROM device through the blkback driver. NOTE: some of these details are obtained from third party information.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | kernel +12 | 2.6.18-238.el5 | RHSA-2011:0017 |
Advisories 1
- RHSA-2011:0017 Red Hat Security Advisory: Red Hat Enterprise Linux 5.6 kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- http://bugs.centos.org/bug_view_advanced_page.php?bug_id=4517
- https://bugzilla.redhat.com/show_bug.cgi?id=655623
- 20111013 VMSA-2011-0012 VMware ESXi and ESX updates to third party libraries and ESX Service Console mailing-list
- RHSA-2011:0017 vendor-advisory
- 46397 third-party-advisory
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- 42884 third-party-advisory
- 45795 vdb-entry
- xen-vdbcreate-dos(64698) vdb-entry