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Category:   OS (UNIX)  >   OpenBSD Kernel Vendors:   OpenBSD
OpenBSD IPsec IPv6 Processing Flaw Lets Remote Users Cause the Target System to Crash
SecurityTracker Alert ID:  1041145
SecurityTracker URL:
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Jun 20 2018
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 6.2, 6.3
Description:   A vulnerability was reported in OpenBSD. A remote user can cause the target system to crash.

A remote user can send a specially crafted IPv6 packet that, when forwarded and encrypted with IPsec by the target system, will cause the target kernel to crash.

The vulnerability resides in the ipsp_process_packet() function.

Impact:   A remote user can cause the target kernel to crash.
Solution:   The vendor has issued a source code fix [in May 2018], available at:

The vendor advisory is available at:

Vendor URL: (Links to External Site)
Cause:   State error

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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