Bug 1387116

Summary: openssh: Memory exhaustion issue
Product: [Other] Security Response Reporter: Andrej Nemec <anemec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED DUPLICATE QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: jjelen, mattias.ellert, mgrepl, plautrba, sardella, tmraz
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Last Closed: 2016-10-20 07:21:08 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1387117    
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Description Andrej Nemec 2016-10-20 07:18:59 UTC
A memory exhaustion vulnerability was found in the key exchange process in openssh. An unauthenticated peer could repeat the KEXINIT and cause allocation of up to 384MB for each connection.

Upstream patch:

http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/kex.c?rev=1.127&content-type=text/x-cvsweb-markup

References:

http://seclists.org/oss-sec/2016/q4/185

Upstream does not consider this as a security issue.

Comment 1 Andrej Nemec 2016-10-20 07:20:45 UTC
Created openssh tracking bugs for this issue:

Affects: fedora-all [bug 1387117]

Comment 2 Andrej Nemec 2016-10-21 10:52:07 UTC

*** This bug has been marked as a duplicate of bug 1384860 ***