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CVE-2021-20181

Опубликовано: 14 янв. 2021
Источник: redhat
CVSS3: 7.5

Описание

A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.

A race condition flaw was found in the 9pfs server implementation of QEMU. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.

Отчет

This issue does not affect the versions of qemu-kvm as shipped with Red Hat products, as they do not include support for the virtio 9p backend.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 6qemu-kvmNot affected
Red Hat Enterprise Linux 7qemu-kvmNot affected
Red Hat Enterprise Linux 7qemu-kvm-maNot affected
Red Hat Enterprise Linux 8virt:rhel/qemu-kvmNot affected
Red Hat Enterprise Linux 8 Advanced Virtualizationvirt:8.2/qemu-kvmNot affected
Red Hat Enterprise Linux 8 Advanced Virtualizationvirt:8.3/qemu-kvmNot affected
Red Hat Enterprise Linux 9qemu-kvmNot affected
Red Hat OpenStack Platform 10 (Newton)qemu-kvm-rhevNot affected
Red Hat OpenStack Platform 13 (Queens)qemu-kvm-rhevNot affected
Red Hat Virtualization 4qemu-kvm-rhevNot affected

Показывать по

Дополнительная информация

Статус:

Moderate
Дефект:
CWE-367->CWE-416
https://bugzilla.redhat.com/show_bug.cgi?id=1927007qemu: 9pfs: TOCTOU privilege escalation vulnerability

7.5 High

CVSS3

Связанные уязвимости

CVSS3: 7.5
ubuntu
около 4 лет назад

A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.

CVSS3: 7.5
nvd
около 4 лет назад

A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.

CVSS3: 7.5
msrc
около 4 лет назад

Описание отсутствует

CVSS3: 7.5
debian
около 4 лет назад

A race condition flaw was found in the 9pfs server implementation of Q ...

CVSS3: 7.5
github
около 3 лет назад

A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.

7.5 High

CVSS3