PulseLinuxLINUX UPDATE INTELLIGENCE
CVE Database›Document archive›CVE-2021-46912

CVE-2021-46912

kernel: namespace leak into all other net namespaces

Loading…

Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · February 27, 2024

Updated · August 5, 2026

Description

A flaw was found in the network sub-component in the Linux Kernel. The tcp_allowed_congestion_control is global and writable, and writing to it in any net namespace will leak into all other net namespaces.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CWE-402 · Transmission of Private Resources into a New Sphere ('Resource Leak')