CVE-2026-104115
Description
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.
How to fix
- illumos illumos-gate6a2df4aa5381599179ab6afb3165db81960dee35 or later
- OmniOS OmniOSr151054, r151058w, r151056aw, r151054bw or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| illumos illumos-gate | 2f172c55ef76964744bc62b4500ece87f3089b4d ≤ v < 6a2df4aa5381599179ab6afb3165db81960dee35 | 6a2df4aa5381599179ab6afb3165db81960dee35 |
| OmniOS OmniOS | any ≤ v < r151054, r151058 ≤ v < r151058w, r151056 ≤ v < r151056aw, r151054 ≤ v < r151054bw | r151054, r151058w, r151056aw, r151054bw |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.