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Intelligence Center » Browse All Vulnerabilities » CVE-2001-1559


Vulnerability Score 2.1 2.1
CVE Id CVE-2001-1559
Last Modified 05 Sep 2008 04:26:51
Published 31 Dec 2001 12:00:00
Confidentiality Impact NONE NONE
Integrity Impact NONE NONE
Availability Impact PARTIAL PARTIAL
Access Vector LOCAL
Access Complexity LOW
Authentication NONE



The uipc system calls (uipc_syscalls.c) in OpenBSD 2.9 and 3.0 provide user mode return instead of versus rval kernel mode values to the fdrelease function, which allows local users to cause a denial of service and trigger a null dereference.

Vulnerable Systems

Operating System

  • Openbsd 2.9

  • Openbsd 3.0


XF - openbsd-retval-null-dos(7690)

MLIST - [OpenBSD] 20011202 Code that crashes kernel at will + proposed patch

BUGTRAQ - 20011202 OpenBSD local DoS

Last Updated: 27 May 2016 10:36:43