Описание
A NULL pointer dereference issue was found in the block mirror layer of QEMU in versions prior to 6.2.0. The self pointer is dereferenced in mirror_wait_on_conflicts() without ensuring that it's not NULL. A malicious unprivileged user within the guest could use this flaw to crash the QEMU process on the host when writing data reaches the threshold of mirroring node.
A NULL pointer dereference issue was found in the block mirror layer of QEMU. The self pointer is dereferenced in mirror_wait_on_conflicts() without ensuring that it's not NULL. A malicious unprivileged user within the guest could use this flaw to crash the QEMU process on the host when writing data reaches the threshold of mirroring node.
Отчет
Releases of Red Hat OpenStack Platform 15 and newer, Red Hat Virtualization 4.4 and newer consume fixes directly from the Red Hat Enterprise Linux 8 Advanced Virtualization repository.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | qemu-kvm | Out of support scope | ||
| Red Hat Enterprise Linux 7 | qemu-kvm | Out of support scope | ||
| Red Hat Enterprise Linux 7 | qemu-kvm-ma | Out of support scope | ||
| Red Hat Enterprise Linux 8 Advanced Virtualization | virt:8.2/qemu-kvm | Not affected | ||
| Red Hat Enterprise Linux 8 Advanced Virtualization | virt:av/qemu-kvm | Not affected | ||
| Red Hat Enterprise Linux 9 | qemu-kvm | Not affected | ||
| Red Hat OpenStack Platform 10 (Newton) | qemu-kvm-rhev | Out of support scope | ||
| Red Hat OpenStack Platform 13 (Queens) | qemu-kvm-rhev | Out of support scope | ||
| Red Hat Enterprise Linux 8 | virt-devel | Fixed | RHSA-2022:1759 | 10.05.2022 |
| Red Hat Enterprise Linux 8 | virt | Fixed | RHSA-2022:1759 | 10.05.2022 |
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Дополнительная информация
Статус:
EPSS
5.6 Medium
CVSS3
Связанные уязвимости
A NULL pointer dereference issue was found in the block mirror layer of QEMU in versions prior to 6.2.0. The `self` pointer is dereferenced in mirror_wait_on_conflicts() without ensuring that it's not NULL. A malicious unprivileged user within the guest could use this flaw to crash the QEMU process on the host when writing data reaches the threshold of mirroring node.
A NULL pointer dereference issue was found in the block mirror layer of QEMU in versions prior to 6.2.0. The `self` pointer is dereferenced in mirror_wait_on_conflicts() without ensuring that it's not NULL. A malicious unprivileged user within the guest could use this flaw to crash the QEMU process on the host when writing data reaches the threshold of mirroring node.
A NULL pointer dereference issue was found in the block mirror layer o ...
A NULL pointer dereference issue was found in the block mirror layer of QEMU in versions prior to 6.2.0. The `self` pointer is dereferenced in mirror_wait_on_conflicts() without ensuring that it's not NULL. A malicious unprivileged user within the guest could use this flaw to crash the QEMU process on the host when writing data reaches the threshold of mirroring node.
EPSS
5.6 Medium
CVSS3