PT-2015-2741 · Xen+7 · Xen+7
Ben Serebrin
·
Publicado
2015-08-31
·
Atualizado
2024-06-15
·
CVE-2015-5307
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
Linux kernel versions prior to 4.2.7
Xen versions 4.3.x through 4.6.x
Description
The issue is related to errors in resource management within the KVM subsystem of the Linux kernel and the Xen hypervisor. It allows a local attacker to cause a denial of service by triggering many Alignment Check exceptions, which can lead to a host OS panic or hang. This is related to the svm.c and vmx.c files.
Recommendations
For Linux kernel versions prior to 4.2.7, update to version 4.2.7 or later to resolve the issue.
For Xen versions 4.3.x through 4.6.x, consider disabling the KVM subsystem temporarily until a patch is available. Restrict access to the svm.c and vmx.c components to minimize the risk of exploitation.
Exploit
Correção
DoS
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Centos
Linux Kernel
Red Hat
Suse
Ubuntu
Virtualbox
Xen