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Bug 1416855 - (CVE-2017-3730) CVE-2017-3730 openssl: Bad (EC)DHE parameters cause a client crash
CVE-2017-3730 openssl: Bad (EC)DHE parameters cause a client crash
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20170126,repor...
: Security
Depends On:
Blocks: 1416858
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Reported: 2017-01-26 10:39 EST by Andrej Nemec
Modified: 2017-02-14 11:33 EST (History)
46 users (show)

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Fixed In Version: openssl 1.1.0d
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Last Closed: 2017-01-31 06:58:43 EST
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Description Andrej Nemec 2017-01-26 10:39:44 EST 
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 06:58:43 EST 
This only affected OpenSSL 1.1.0, which is not currently included in any Red Hat product.
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