CVE-2021-3923 - CVE House
Back to Database
Status published Unknown CVE-2021-3923

A flaw was found in the Linux kernel's implementation of...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-3923

Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

kernel
Vulnerable Versions:
unknown

Timeline

Official Publish: March 27th, 2023
Last Modified: February 24th, 2025
Added to House: July 21st, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)