Описание
In the Linux kernel, the following vulnerability has been resolved:
netfilter: conntrack: re-fetch conntrack after insertion
In case the conntrack is clashing, insertion can free skb->_nfct and set skb->_nfct to the already-confirmed entry.
This wasn't found before because the conntrack entry and the extension space used to free'd after an rcu grace period, plus the race needs events enabled to trigger.
Ссылки
- Patch
- Patch
- Patch
- Patch
- Patch
- Patch
- Patch
- Patch
Уязвимые конфигурации
Одно из
EPSS
9.8 Critical
CVSS3
5.5 Medium
CVSS3
Дефекты
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing, insertion can free skb->_nfct and set skb->_nfct to the already-confirmed entry. This wasn't found before because the conntrack entry and the extension space used to free'd after an rcu grace period, plus the race needs events enabled to trigger.
In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing, insertion can free skb->_nfct and set skb->_nfct to the already-confirmed entry. This wasn't found before because the conntrack entry and the extension space used to free'd after an rcu grace period, plus the race needs events enabled to trigger.
In the Linux kernel, the following vulnerability has been resolved: n ...
In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing, insertion can free skb->_nfct and set skb->_nfct to the already-confirmed entry. This wasn't found before because the conntrack entry and the extension space used to free'd after an rcu grace period, plus the race needs events enabled to trigger.
Уязвимость функции nf_conntrack_confirm() модуля include/net/netfilter/nf_conntrack_core.h ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
9.8 Critical
CVSS3
5.5 Medium
CVSS3