Description (CNA)
A stack-based buffer overflow in the illumos reparse point daemon (reparsed) allows a local user to crash the daemon. get_fs_locations() in usr/src/cmd/fs.d/nfs/rp_basic/libnfs_basic.c, part of the nfs-basic reparse plugin, copies the host and path components of a reparse string into a fixed 1024-byte stack buffer without checking their length. The reparsed door at /var/run/reparsed_door is readable by all users and the door server does not check the caller's credentials, so an unprivileged local user can send an nfs-basic request with an overlong host or path component to overflow the buffer. On systems built with stack protection, which is the default, this causes reparsed to abort; repeated requests place the svc:/system/filesystem/reparse service into maintenance. The service is disabled by default. The flaw has existed since 2009 (illumos-gate commit 2f172c55), and affects any illumos distribution prior to illumos-gate commit 6a2df4aa.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| illumos / illumos-gate | affected 2f172c55ef76964744bc62b4500ece87f3089b4d before 6a2df4aa5381599179ab6afb3165db81960dee35 |
| OmniOS / OmniOS | affected any before r151054; affected r151058 before r151058w; affected r151056 before r151056aw; affected r151054 before r151054bw |
CWE
CWE-121
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/18496
- https://github.com/illumos/illumos-gate/commit/6a2df4aa5381599179ab6afb3165db81960dee35
ADP enrichment
No English description supplied.
No references supplied.