Description
Qemu 0.9.1 and earlier does not perform range checks for block device read or write requests, which allows guest host users with root privileges to access arbitrary memory and escape the 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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | qemu | 0.9.1+svn20081207-1 | — |
| Debian 13 | qemu | 0.9.1+svn20081207-1 | — |
| Debian 12 | qemu | 0.9.1+svn20081207-1 | — |
| Debian 5.0 | kvm | 60+dfsg-1+lenny1 | DTSA-133-1 |
| Debian 5.0 | qemu | 0.9.1-10lenny1 | DSA-1799-1 |
| Debian 4.0 | qemu | 0.8.2-4etch3 | DSA-1799-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | xen +1 | 3.0.3-41.el5_1.5 | RHSA-2008:0194 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Virtualization 5 | xen +1 | 3.0.3-41.el5_1.5 | RHSA-2008:0194 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | qemu +1 | 2.6.1-1.5 | openSUSE-SU-2024:10285-1, openSUSE-SU-2024:10233-1 |
Advisories 5
- RHSA-2008:0194 Red Hat Security Advisory: xen security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1799-1 qemu - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- DTSA-133-1 kvm - multiple vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10285-1 qemu-linux-user-2.6.1-1.5 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10233-1 qemu-2.6.1-1.5 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- FEDORA-2008-1993 vendor-advisory
- FEDORA-2008-1995 vendor-advisory
- RHSA-2008:0194 vendor-advisory
- FEDORA-2008-2057 vendor-advisory
- FEDORA-2008-2083 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=433560
- 34642 third-party-advisory
- MDVSA-2009:016 vendor-advisory
- MDVSA-2008:162 vendor-advisory
- [debian-security] 20080219 qemu unchecked block read/write vulnerability mailing-list
- FEDORA-2008-2001 vendor-advisory
- FEDORA-2008-1973 vendor-advisory
- 29963 third-party-advisory
- oval:org.mitre.oval:def:9706 vdb-entry signature
- SUSE-SR:2009:008 vendor-advisory
- 29129 third-party-advisory
- 28001 vdb-entry
- DSA-1799 vendor-advisory
- 29136 third-party-advisory
- 35031 third-party-advisory
- 29081 third-party-advisory
- 29172 third-party-advisory