Описание
A flaw was found in the libvirt nwfilter driver. The virNWFilterObjListNumOfNWFilters method failed to acquire the driver->nwfilters mutex before iterating over virNWFilterObj instances. There was no protection to stop another thread from concurrently modifying the driver->nwfilters object. This flaw allows a malicious, unprivileged user to exploit this issue via libvirt's API virConnectNumOfNWFilters to crash the network filter management daemon (libvirtd/virtnwfilterd).
Отчет
A future update may address this issue in Red Hat Enterprise Linux 8 and RHEL Advanced Virtualization.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | libvirt | Out of support scope | ||
| Red Hat Enterprise Linux 7 | libvirt | Out of support scope | ||
| Red Hat Enterprise Linux 8 Advanced Virtualization | virt:8.2/libvirt | Fix deferred | ||
| Red Hat Enterprise Linux 8 Advanced Virtualization | virt:av/libvirt | Fix deferred | ||
| Red Hat Enterprise Linux 8 | virt-devel | Fixed | RHSA-2022:7472 | 08.11.2022 |
| Red Hat Enterprise Linux 8 | virt | Fixed | RHSA-2022:7472 | 08.11.2022 |
| Red Hat Enterprise Linux 9 | libvirt | Fixed | RHSA-2022:8003 | 15.11.2022 |
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Дополнительная информация
Статус:
EPSS
5 Medium
CVSS3
Связанные уязвимости
A flaw was found in the libvirt nwfilter driver. The virNWFilterObjListNumOfNWFilters method failed to acquire the driver->nwfilters mutex before iterating over virNWFilterObj instances. There was no protection to stop another thread from concurrently modifying the driver->nwfilters object. This flaw allows a malicious, unprivileged user to exploit this issue via libvirt's API virConnectNumOfNWFilters to crash the network filter management daemon (libvirtd/virtnwfilterd).
A flaw was found in the libvirt nwfilter driver. The virNWFilterObjListNumOfNWFilters method failed to acquire the driver->nwfilters mutex before iterating over virNWFilterObj instances. There was no protection to stop another thread from concurrently modifying the driver->nwfilters object. This flaw allows a malicious, unprivileged user to exploit this issue via libvirt's API virConnectNumOfNWFilters to crash the network filter management daemon (libvirtd/virtnwfilterd).
A flaw was found in the libvirt nwfilter driver. The virNWFilterObjLis ...
EPSS
5 Medium
CVSS3