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CVE-2021-3975

Опубликовано: 23 авг. 2022
Источник: ubuntu
Приоритет: low
EPSS Низкий
CVSS3: 6.5

Описание

A use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash.

РелизСтатусПримечание
bionic

released

4.0.0-1ubuntu8.21
devel

released

7.6.0-0ubuntu3
esm-infra-legacy/trusty

needs-triage

esm-infra/bionic

not-affected

4.0.0-1ubuntu8.21
esm-infra/focal

not-affected

6.0.0-0ubuntu8.16
esm-infra/xenial

needs-triage

focal

released

6.0.0-0ubuntu8.16
hirsute

ignored

end of life
impish

not-affected

7.6.0-0ubuntu1
jammy

released

7.6.0-0ubuntu3

Показывать по

EPSS

Процентиль: 48%
0.00251
Низкий

6.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.3
redhat
больше 3 лет назад

A use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash.

CVSS3: 6.5
nvd
почти 3 года назад

A use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash.

CVSS3: 6.5
msrc
почти 3 года назад

Описание отсутствует

CVSS3: 6.5
debian
почти 3 года назад

A use-after-free flaw was found in libvirt. The qemuMonitorUnregister( ...

CVSS3: 6.5
github
почти 3 года назад

A use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash.

EPSS

Процентиль: 48%
0.00251
Низкий

6.5 Medium

CVSS3