Description
The MMIO instruction decoder in the Xen hypervisor in the Linux kernel 2.6.18 in Red Hat Enterprise Linux (RHEL) 5 allows guest OS users to cause a denial of service (32-bit guest OS crash) via vectors that trigger an unspecified instruction emulation.
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 +11 | 2.6.18-194.3.1.el5 | RHSA-2010:0398 |
Advisories 1
- RHSA-2010:0398 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- [oss-security] 20100507 CVE-2010-0730 xen: emulator instruction decoding inconsistency mailing-list
- 39979 vdb-entry
- oval:org.mitre.oval:def:11430 vdb-entry signature
- 39649 third-party-advisory
- 43315 third-party-advisory
- RHSA-2010:0398 vendor-advisory
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html
- http://support.avaya.com/css/P8/documents/100088287
- 20110211 VMSA-2011-0003 Third party component updates for VMware vCenter Server, vCenter Update Manager, ESXi and ESX mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=572971