OpenSSL is vulnerable to denial of service (DoS) attacks. These attacks can be made using an invalid DTLS handshake causing OpenSSL to go into a recursive loop.
aix.software.ibm.com/aix/efixes/security/openssl_advisory9.asc
kb.juniper.net/InfoCenter/index?page=content&id=JSA10629
linux.oracle.com/errata/ELSA-2014-1053.html
lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html
lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html
lists.opensuse.org/opensuse-security-announce/2015-04/msg00016.html
lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html
marc.info/?l=bugtraq&m=140266410314613&w=2
marc.info/?l=bugtraq&m=140317760000786&w=2
marc.info/?l=bugtraq&m=140389274407904&w=2
marc.info/?l=bugtraq&m=140389355508263&w=2
marc.info/?l=bugtraq&m=140431828824371&w=2
marc.info/?l=bugtraq&m=140448122410568&w=2
marc.info/?l=bugtraq&m=140482916501310&w=2
marc.info/?l=bugtraq&m=140491231331543&w=2
marc.info/?l=bugtraq&m=140499827729550&w=2
marc.info/?l=bugtraq&m=140621259019789&w=2
marc.info/?l=bugtraq&m=140752315422991&w=2
marc.info/?l=bugtraq&m=140904544427729&w=2
rhn.redhat.com/errata/RHSA-2014-1021.html
seclists.org/fulldisclosure/2014/Dec/23
secunia.com/advisories/58337
secunia.com/advisories/58615
secunia.com/advisories/58713
secunia.com/advisories/58714
secunia.com/advisories/58939
secunia.com/advisories/58945
secunia.com/advisories/58977
secunia.com/advisories/59027
secunia.com/advisories/59120
secunia.com/advisories/59126
secunia.com/advisories/59162
secunia.com/advisories/59167
secunia.com/advisories/59175
secunia.com/advisories/59189
secunia.com/advisories/59192
secunia.com/advisories/59221
secunia.com/advisories/59284
secunia.com/advisories/59287
secunia.com/advisories/59300
secunia.com/advisories/59301
secunia.com/advisories/59306
secunia.com/advisories/59310
secunia.com/advisories/59342
secunia.com/advisories/59364
secunia.com/advisories/59365
secunia.com/advisories/59413
secunia.com/advisories/59429
secunia.com/advisories/59437
secunia.com/advisories/59441
secunia.com/advisories/59449
secunia.com/advisories/59450
secunia.com/advisories/59451
secunia.com/advisories/59454
secunia.com/advisories/59460
secunia.com/advisories/59490
secunia.com/advisories/59491
secunia.com/advisories/59495
secunia.com/advisories/59514
secunia.com/advisories/59518
secunia.com/advisories/59528
secunia.com/advisories/59655
secunia.com/advisories/59659
secunia.com/advisories/59666
secunia.com/advisories/59669
secunia.com/advisories/59721
secunia.com/advisories/59784
secunia.com/advisories/59895
secunia.com/advisories/59990
secunia.com/advisories/60571
secunia.com/advisories/60687
secunia.com/advisories/61254
security.gentoo.org/glsa/glsa-201407-05.xml
support.apple.com/kb/HT6443
support.citrix.com/article/CTX140876
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140605-openssl
www-01.ibm.com/support/docview.wss?uid=isg400001841
www-01.ibm.com/support/docview.wss?uid=isg400001843
www-01.ibm.com/support/docview.wss?uid=nas8N1020163
www-01.ibm.com/support/docview.wss?uid=swg21673137
www-01.ibm.com/support/docview.wss?uid=swg21675821
www-01.ibm.com/support/docview.wss?uid=swg21676035
www-01.ibm.com/support/docview.wss?uid=swg21676062
www-01.ibm.com/support/docview.wss?uid=swg21676071
www-01.ibm.com/support/docview.wss?uid=swg21676419
www-01.ibm.com/support/docview.wss?uid=swg21676879
www-01.ibm.com/support/docview.wss?uid=swg21676889
www-01.ibm.com/support/docview.wss?uid=swg21677527
www-01.ibm.com/support/docview.wss?uid=swg21677695
www-01.ibm.com/support/docview.wss?uid=swg21677828
www-01.ibm.com/support/docview.wss?uid=swg21678167
www-01.ibm.com/support/docview.wss?uid=swg21678289
www-01.ibm.com/support/docview.wss?uid=swg21683332
www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095754
www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095755
www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095756
www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095757
www.blackberry.com/btsc/KB36051
www.fortiguard.com/advisory/FG-IR-14-018/
www.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-345106.htm
www.ibm.com/support/docview.wss?uid=swg21676226
www.ibm.com/support/docview.wss?uid=swg21676356
www.ibm.com/support/docview.wss?uid=swg21676793
www.ibm.com/support/docview.wss?uid=swg24037783
www.mandriva.com/security/advisories?name=MDVSA-2014:105
www.mandriva.com/security/advisories?name=MDVSA-2014:106
www.mandriva.com/security/advisories?name=MDVSA-2015:062
www.novell.com/support/kb/doc.php?id=7015264
www.novell.com/support/kb/doc.php?id=7015300
www.openssl.org/news/secadv_20140605.txt
www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html
www.securityfocus.com/archive/1/534161/100/0/threaded
www.securityfocus.com/bid/67901
www.securitytracker.com/id/1030337
www.vmware.com/security/advisories/VMSA-2014-0006.html
www.vmware.com/security/advisories/VMSA-2014-0012.html
www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd?mode=18&ID=6060&myns=phmc&mync=E
www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd?mode=18&ID=6061&myns=phmc&mync=E
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=1103593
git.openssl.org/gitweb/?p=openssl.git;a=commit;h=d3152655d5319ce883c8e3ac4b99f8de4c59d846
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05301946
kb.bluecoat.com/index?page=content&id=SA80
kc.mcafee.com/corporate/index?page=content&id=SB10075
rhn.redhat.com/errata/RHSA-2014-1053.html
www.novell.com/support/kb/doc.php?id=7015271
www.openssl.org/news/secadv_20140605.txt
www.openssl.org/news/secadv_20140806.txt