PT-2015-7683 · Xen+1 · Xen+1
Andrew Cooper
·
Publicado
2015-10-30
·
Atualizado
2024-06-15
·
CVE-2015-7970
CVSS v2.0
4.9
Média
| Vetor | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Xen versions 3.4.x through 3.6.x
Description
The issue is related to the
p2m pod emergency sweep function in Xen, which is not preemptible. This allows local x86 HVM guest administrators to cause a denial of service by consuming CPU resources and possibly triggering a reboot. The denial of service is caused by crafted memory contents that trigger a "time-consuming linear scan" related to Populate-on-Demand.Recommendations
For Xen versions 3.4.x through 3.6.x, consider restricting access to the
p2m pod emergency sweep function as a temporary workaround until a patch is available.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.DoS
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Suse
Xen