Описание
A flaw was found in sssd. A local unprivileged user could send a specially crafted request with a zero-length body to the Network Security Services (NSS) responder. This could lead to a denial-of-service condition, causing the NSS responder to become unstable or terminate. This vulnerability affects the availability of the system responder.
Отчет
This flaw is rated Moderate. A local unprivileged attacker can trigger a denial of service in the SSSD NSS responder by sending a crafted request to its local UNIX socket. This impact is limited to availability and requires local access, preventing broader system compromise or remote exploitation.
Меры по смягчению последствий
To mitigate this issue, restrict access to the NSS responder UNIX socket or disable the NSS responder if it is not required. The NSS responder can be disabled by editing the /etc/sssd/sssd.conf file and removing nss from the services line in the [sssd] section. After modifying the configuration, restart the SSSD service for the changes to take effect. Disabling the NSS responder may impact local user and group resolution.
Example:
Warning: Restarting the sssd service will temporarily interrupt authentication and authorization services.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | sssd | Fix deferred | ||
| Red Hat Enterprise Linux 6 | sssd | Out of support scope | ||
| Red Hat Enterprise Linux 7 | sssd | Fix deferred | ||
| Red Hat Enterprise Linux 8 | sssd | Fix deferred | ||
| Red Hat Enterprise Linux 9 | sssd | Fix deferred | ||
| Red Hat OpenShift Container Platform 4 | openshift/ose-rhel-coreos-8 | Fix deferred | ||
| Red Hat OpenShift Container Platform 4 | openshift/ose-rhel-coreos-9 | Fix deferred |
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Дополнительная информация
Статус:
4 Medium
CVSS3
Связанные уязвимости
A flaw was found in sssd. A local unprivileged user could send a specially crafted request with a zero-length body to the Network Security Services (NSS) responder. This could lead to a denial-of-service condition, causing the NSS responder to become unstable or terminate. This vulnerability affects the availability of the system responder.
A flaw was found in sssd. A local unprivileged user could send a specially crafted request with a zero-length body to the Network Security Services (NSS) responder. This could lead to a denial-of-service condition, causing the NSS responder to become unstable or terminate. This vulnerability affects the availability of the system responder.
A flaw was found in sssd. A local unprivileged user could send a speci ...
A flaw was found in sssd. A local unprivileged user could send a specially crafted request with a zero-length body to the Network Security Services (NSS) responder. This could lead to a denial-of-service condition, causing the NSS responder to become unstable or terminate. This vulnerability affects the availability of the system responder.
4 Medium
CVSS3