CVE-2001-1047
Race condition in OpenBSD VFS allows local users to cause a denial of service (kernel panic) by (1) creating a pipe in one thread and…
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Race condition in OpenBSD VFS allows local users to cause a denial of service (kernel panic) by (1) creating a pipe in one thread and causing another thread to set one of the file descriptors to NULL via a close, or (2) calling dup2 on a file descriptor in one process, then setting the descriptor to NULL via a close in another process that is created via rfork.
Timeline
ID reserved
By mitre
- 2 days later
· 2 days later
Published
- 23 years later
· 23 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Low1.2 | AV:L/AC:H/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 0.27% · top 81% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 1.2.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (5)
- 20010602 Locally exploitable races in OpenBSD VFS (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 2817 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- openbsd-dup2-race-dos(6660) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- openbsd-pipe-race-dos(6661) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 2818 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2001-1047)Record last updated .