Bug 1416855 (CVE-2017-3730)

Summary: CVE-2017-3730 openssl: Bad (EC)DHE parameters cause a client crash
Product: [Other] Security Response Reporter: Andrej Nemec <anemec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: bbaranow, bmaxwell, bmcclain, cdewolf, cfergeau, csutherl, dandread, darran.lofthouse, dblechte, dosoudil, eedri, erik-fedora, fnasser, gklein, gzaronik, huwang, jawilson, jclere, ktietz, lersek, lgao, lsurette, marcandre.lureau, mbabacek, mgoldboi, michal.skrivanek, mturk, myarboro, pgier, psakar, pslavice, rbalakri, redhat-bugzilla, rh-spice-bugs, rjones, rnetuka, rsvoboda, sardella, sherold, srevivo, tmraz, twalsh, vtunka, weli, ykaul, ylavi
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: openssl 1.1.0d Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-01-31 11:58:43 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On:    
Bug Blocks: 1416858    

Description Andrej Nemec 2017-01-26 15:39:44 UTC
If a malicious server supplies bad parameters for a DHE or ECDHE key exchange
then this can result in the client attempting to dereference a NULL pointer
leading to a client crash. This could be exploited in a Denial of Service
attack.

This issue does not affect OpenSSL version 1.0.2.

External References:

https://www.openssl.org/news/secadv/20170126.txt

Comment 2 Tomas Hoger 2017-01-31 11:58:43 UTC
This only affected OpenSSL 1.1.0, which is not currently included in any Red Hat product.