VULNERABILITY INTELLIGENCE

CVE-2021-3923

CVSS score2.3 LOW
EPSS probability0.20%
CISA KEVNot currently listed
Published2023-03-27
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

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.

Weakness classification

  • secalert@redhat.com: CWE-200
  • nvd@nist.gov: NVD-CWE-noinfo

Primary references