Description
QEMU-KVM, as used in the Hypervisor (aka rhev-hypervisor) in Red Hat Enterprise Virtualization (RHEV) 2.2 and KVM 83, does not properly validate guest QXL driver pointers, which allows guest OS users to cause a denial of service (invalid pointer dereference and guest OS crash) or possibly gain privileges via unspecified vectors.
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 | 5.5-2.2.6.1.el5_5rhev2_2 | RHSA-2010:0622 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Virtualization 5 | kvm +3 | 83-164.el5_5.21 | RHSA-2010:0627 |
Advisories 2
- RHSA-2010:0627 Red Hat Security Advisory: kvm security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2010:0622 Red Hat Security Advisory: rhev-hypervisor security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
References
- RHSA-2010:0627 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=568809
- RHSA-2010:0622 vendor-advisory