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Category:   OS (UNIX)  >   OpenBSD Kernel Vendors:   OpenBSD
OpenBSD Invalid ELF Binary Processing Flaw Lets Local Users Cause Denial of Service Conditions on the Target System
SecurityTracker Alert ID:  1041549
SecurityTracker URL:  http://securitytracker.com/id/1041549
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Aug 22 2018
Impact:   Denial of service via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 6.2, 6.3
Description:   A vulnerability was reported in OpenBSD Kernel. A local user can cause denial of service conditions on the target system.

A local user can execute a specially crafted ELF binary to trigger a flaw in elf_load_file() and cause a kernel panic on the target system.

Impact:   A local user can cause the target system to crash.
Solution:   The vendor has issued a source code fix, available at:

https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/018_execsize.patch.sig
https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/012_execsize.patch.sig

Vendor URL:  www.openbsd.org/errata63.html (Links to External Site)
Cause:   State error

Message History:   None.


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