Description
Virtual Desktop Server Manager (VDSM) in Red Hat Enterprise Virtualization Hypervisor (aka RHEV-H or rhev-hypervisor) before 5.5-2.2 does not properly perform VM post-zeroing after the removal of a virtual machine's data, which allows guest OS users to obtain sensitive information by examining the disk blocks associated with a deleted virtual machine.
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 | rhev-hypervisor +1 | 5.5-2.2.4.2.el5rhev | RHSA-2010:0476 |
| RHEL 5 | vdsm22 +1 | 4.5-62.el5rhev | RHSA-2010:0473 |
Advisories 2
- RHSA-2010:0476 Red Hat Security Advisory: rhev-hypervisor security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2010:0473 Red Hat Security Advisory: vdsm security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
References
- RHSA-2010:0476 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=604752
- 41044 vdb-entry
- RHSA-2010:0473 vendor-advisory
- 1024137 vdb-entry