Description (CNA)
A NULL pointer dereference in the illumos Network Auto-Magic daemon (nwamd) allows a local user to crash the daemon. nwamd_door_switch() in usr/src/cmd/cmd-inet/lib/nwamd/door_if.c writes to the caller's request structure before checking that a request was supplied, and before checking the caller's credentials. Because the nwamd door at /etc/svc/volatile/nwam/nwam_door is accessible to all local users, an unprivileged user can issue a door_call() with no argument data to crash nwamd; repeated calls place the svc:/network/physical:nwam service into maintenance, stopping automatic network configuration. nwamd runs only when svc:/network/physical:nwam is enabled, which is not the default. The flaw has existed since 2010 (illumos-gate commit 6ba597c5), and affects any illumos distribution prior to illumos-gate commit 0f1064d9.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| illumos / illumos-gate | affected 6ba597c56d749c61b4f783157f63196d7b2445f0 before 0f1064d97f1a43778ddf87d4e438b99872aed1a0 |
| OmniOS / OmniOS | affected any before r151054; affected r151058 before r151058w; affected r151056 before r151056aw; affected r151054 before r151054bw |
CWE
CWE-476
References
- https://illumos.topicbox.com/groups/developer/T3b859664594b7762/cve-2026-104112-to-cve-2026-104117-denial-of-service-and-missing-authorization-in-door-servers
- https://illumos.org/issues/18495
- https://github.com/illumos/illumos-gate/commit/0f1064d97f1a43778ddf87d4e438b99872aed1a0
ADP enrichment
No English description supplied.
No references supplied.