CME-702

Linux Namespaces (User, PID, Network, Mount)

Description

Kernel namespace isolation providing separate views of system resources per process group. PID namespace hides host processes, mount namespace isolates filesystem, network namespace isolates network stack, user namespace remaps UIDs.

CVSS Vector Impacts

Metric Transition Rationale
Scope (S) C U Process cannot see or interact with resources outside its namespace
Privileges Required (PR) L H UID 0 inside namespace maps to unprivileged user on host (user ns)

CWE Relationships

Verification

Check process namespace isolation

$ ls -la /proc/<pid>/ns/
# Expected: user mnt pid net
Platform: linux
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