DEBIAN-CVE-2021-3923

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2021-3923
Published: 27 Mar 2023, 21:15
Last modified:28 Apr 2026, 20:22

Vulnerability Summary

Overall Risk (default)
minimal
9/100
CVSS Score
2.3 LOW
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

27 Mar 2023, 21:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:22
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•LOW•Score: 2.3CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

Affected Systems

  • debian•linux

    < 5.10.92-1 | < 5.15.15-1 | < 5.15.15-1 | < 5.15.15-1

References (1)