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.
Published 2023-03-27 21:15:10
Updated 2023-04-03 16:54:16
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Information leak

Exploit prediction scoring system (EPSS) score for CVE-2021-3923

0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 7 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-3923

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
2.3
LOW CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
0.8
1.4
NIST

CWE ids for CVE-2021-3923

References for CVE-2021-3923

Products affected by CVE-2021-3923

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