Amazon Linux AMI: CVE-2021-3923: Security patch for kernel (ALAS-2023-1688)
4
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
02/17/2023
10/18/2023
10/17/2023
10/17/2023
Description
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.
Solution(s)
- amazon-linux-upgrade-kernel
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