Bug 37494

Summary:	openssl: Multiple issues (4.0)
Product:	UCS	Reporter:	Moritz Muehlenhoff <jmm>
Component:	Security updates	Assignee:	Moritz Muehlenhoff <jmm>
Status:	CLOSED FIXED	QA Contact:	Janek Walkenhorst <walkenhorst>
Severity:	normal
Priority:	P3
Version:	UCS 4.0
Target Milestone:	UCS 4.0-0-errata
Hardware:	Other
OS:	Linux
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Description Moritz Muehlenhoff

2015-01-09 07:23:15 CET

Denial of service in DTLS (2014-3571, CVE-2015-0206)

ECDHE can be downgraded to ECDH, resulting in a loss of forward secrecy (CVE-2014-3572)
Weaker RSA keys can be negotiated (CVE-2015-0204)
AFAICS these can only be exploited by a malicous server.

An OpenSSL server will accept a DH certificate for client authentication
without the certificate verify message (CVE-2015-0205)

Certificate fingerprints can be modified (CVE-2014-8275)

Bignum squaring may produce incorrect results (CVE-2014-3570)

Comment 1 Moritz Muehlenhoff

2015-01-12 10:47:03 CET

Update has been built, tests and test suite were fine.

I've also tested the ucs-test modules base, samba and ldap, which were also fine.

YAML file: 2015-01-12-openssl.yaml

Comment 2 Janek Walkenhorst

2015-01-12 15:29:40 CET

Tests: OK
Advisory: OK

Comment 3 Moritz Muehlenhoff

2015-01-13 11:25:42 CET

http://errata.univention.de/ucs/4.0/26.html

Comment 4 Janis Meybohm

2015-03-05 07:13:17 CET

(In reply to Moritz Muehlenhoff from comment #3)
http://errata.univention.de/ucs/4.0/27.html acutally