Уязвимость драйверов drivers/target/target_core_xcopy.c ядра операционной системы Linux, позволяющая нарушителю получить доступ на чтение, изменение, добавление или удаление данных

Уязвимость реализации протокола TIPC (Transparent Inter Process Communication) ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are proxied via an attacker-selected backstore.

A remote denial of service vulnerability was found in the Linux kernel’s TIPC kernel module. The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue. Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100%, causing a denial of service condition.