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Category:   OS (UNIX)  >   OpenBSD Kernel Vendors:   OpenBSD
OpenBSD ELF Auxiliary Vector Storage Lets Local Users View Portions of Kernel Stack Memory on the Target System
SecurityTracker Alert ID:  1038099
SecurityTracker URL:  http://securitytracker.com/id/1038099
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Mar 22 2017
Impact:   Disclosure of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5.9, 6.0
Description:   A vulnerability was reported in OpenBSD. A local user can obtain potentially sensitive information from system memory.

The system leaks portions of kernel stack memory to local users via ELF auxiliary vector storage. A local user can obtain potentially sensitive information from system memory on the target system.

Impact:   A local user can obtain potentially sensitive information from system memory on the target system.
Solution:   The vendor has issued a source code fix, available at:

https://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/037_exec_elf.patch.sig
https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/020_exec_elf.patch.sig

The vendor advisories are available at:

http://www.openbsd.org/errata59.html
http://www.openbsd.org/errata60.html

Vendor URL:  www.openbsd.org/errata60.html (Links to External Site)
Cause:   Access control error

Message History:   None.


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