CVE-2001-1047

Severity: low (CVSS 1.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2001-06-02 · updated 2026-06-16

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.

Affected products

OpenBSD: 2.6, 2.7, 2.8, 2.9

References

http://seclists.org/bugtraq/2001/Jun/0020.html
http://www.securityfocus.com/bid/2817
http://www.securityfocus.com/bid/2818
https://exchange.xforce.ibmcloud.com/vulnerabilities/6660
https://exchange.xforce.ibmcloud.com/vulnerabilities/6661
http://seclists.org/bugtraq/2001/Jun/0020.html
http://www.securityfocus.com/bid/2817
http://www.securityfocus.com/bid/2818
https://exchange.xforce.ibmcloud.com/vulnerabilities/6660
https://exchange.xforce.ibmcloud.com/vulnerabilities/6661

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