OpenBSD pipe() race condition denial of service
| openbsd-pipe-race-dos (6661) |  Medium Risk |
Description:
OpenBSD is vulnerable to a race condition in the pipe kernel function that could result in a kernel panic. An attacker could use this vulnerability to cause a denial of service attack.
Platforms Affected:
- OpenBSD, OpenBSD 2.6
- OpenBSD, OpenBSD 2.7
- OpenBSD, OpenBSD 2.8
- OpenBSD, OpenBSD 2.9
Remedy:
No remedy available as of November 22, 2008.
Consequences:
Denial of Service
References:
- BugTraq Mailing List, Sat Jun 02 2001 - 18:00:08 CDT, Locally exploitable races in OpenBSD VFS at http://archives.neohapsis.com/archives/bugtraq/2001-05/0328.html.
- BID-2817: OpenBSD Dup2 VFS Race Condition Denial Of Service Vulnerability
- BID-2818: OpenBSD Pipe VFS Race Condition Denial Of Service Vulnerability
- 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 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.
Reported:
Jun 02, 2001
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