PT-2010-4290 · Red Hat · Red Hat Enterprise Virtualization+3
Petr Matousek
·
Published
2010-08-19
·
Updated
2010-08-25
·
CVE-2010-2784
CVSS v2.0
6.6
Medium
| Vector | AV:L/AC:M/Au:S/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
QEMU-KVM versions as used in Red Hat Enterprise Virtualization (RHEV) 2.2 and KVM 83
Description
The issue is related to the subpage MMIO initialization functionality in the subpage register function in exec.c. This functionality does not properly select the index for access to the callback array. As a result, guest OS users can cause a denial of service, leading to a guest OS crash, or possibly gain privileges via unspecified vectors.
Recommendations
For QEMU-KVM versions as used in Red Hat Enterprise Virtualization (RHEV) 2.2 and KVM 83, consider restricting access to the subpage register function in exec.c to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.
DoS
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Weakness Enumeration
Related Identifiers
Affected Products
Kvm
Qemu-Kvm
Red Hat
Red Hat Enterprise Virtualization