Vulnerabilities > CVE-2021-3923

047910
CVSS 2.3 - LOW
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
HIGH
Confidentiality impact
LOW
Integrity impact
NONE
Availability impact
NONE
local
low complexity
redhat
fedoraproject

Summary

A flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a privileged local account can leak kernel stack information when issuing commands to the /dev/infiniband/rdma_cm device node. While this access is unlikely to leak sensitive user information, it can be further used to defeat existing kernel protection mechanisms.