The DES and Triple DES ciphers, as used in the TLS, SSH, and IPSec protocols and other protocols and products, have a birthday bound of approximately four billion blocks, which makes it easier for remote attackers to obtain cleartext data via a birthday attack against a long-duration encrypted session, as demonstrated by an HTTPS session using Triple DES in CBC mode, aka a "Sweet32" attack.
https://www.teskalabs.com/blog/teskalabs-bulletin-160826-seacat-sweet32-issue
https://www.tenable.com/security/tns-2017-09
https://www.tenable.com/security/tns-2016-21
https://www.tenable.com/security/tns-2016-20
https://www.tenable.com/security/tns-2016-16
https://www.sigsac.org/ccs/CCS2016/accepted-papers/
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
https://www.oracle.com/security-alerts/cpuoct2021.html
https://www.oracle.com/security-alerts/cpuoct2020.html
https://www.oracle.com/security-alerts/cpujul2020.html
https://www.oracle.com/security-alerts/cpujan2020.html
https://www.oracle.com/security-alerts/cpuapr2020.html
https://www.openssl.org/blog/blog/2016/08/24/sweet32/
https://www.mitel.com/en-ca/support/security-advisories/mitel-product-security-advisory-17-0008
https://www.ietf.org/mail-archive/web/tls/current/msg04560.html
https://www.exploit-db.com/exploits/42091/
https://www.arista.com/en/support/advisories-notices/security-advisories/1749-security-advisory-24
https://wiki.opendaylight.org/view/Security_Advisories
https://support.f5.com/csp/article/K13167034
https://softwaresupport.softwaregrp.com/document/-/facetsearch/document/KM03286178
https://softwaresupport.softwaregrp.com/document/-/facetsearch/document/KM03158613
https://security.netapp.com/advisory/ntap-20170119-0001/
https://security.netapp.com/advisory/ntap-20160915-0001/
https://security.gentoo.org/glsa/201707-01
https://security.gentoo.org/glsa/201701-65
https://security.gentoo.org/glsa/201612-16
https://seclists.org/bugtraq/2018/Nov/21
https://nodejs.org/en/blog/vulnerability/september-2016-security-releases/
https://nakedsecurity.sophos.com/2016/08/25/anatomy-of-a-cryptographic-collision-the-sweet32-attack/
https://kc.mcafee.com/corporate/index?page=content&id=SB10310
https://kc.mcafee.com/corporate/index?page=content&id=SB10215
https://kc.mcafee.com/corporate/index?page=content&id=SB10197
https://kc.mcafee.com/corporate/index?page=content&id=SB10186
https://kc.mcafee.com/corporate/index?page=content&id=SB10171
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312
https://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390849
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05385680
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05369415
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05369403
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05356388
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05349499
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05323116
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05309984
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05302448
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03725en_us
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03765en_us
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c05390849
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c05390722
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c05385680
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c05369415
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c05369403
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c05302448
https://github.com/ssllabs/ssllabs-scan/issues/387#issuecomment-242514633
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
https://bugzilla.redhat.com/show_bug.cgi?id=1369383
https://bto.bluecoat.com/security-advisory/sa133
https://blog.cryptographyengineering.com/2016/08/24/attack-of-week-64-bit-ciphers-in-tls/
https://access.redhat.com/security/cve/cve-2016-2183
https://access.redhat.com/errata/RHSA-2020:0451
https://access.redhat.com/errata/RHSA-2019:2859
https://access.redhat.com/errata/RHSA-2019:1245
https://access.redhat.com/errata/RHSA-2018:2123
https://access.redhat.com/errata/RHSA-2017:3240
https://access.redhat.com/errata/RHSA-2017:3239
https://access.redhat.com/errata/RHSA-2017:3114
https://access.redhat.com/errata/RHSA-2017:3113
https://access.redhat.com/errata/RHSA-2017:2710
https://access.redhat.com/errata/RHSA-2017:2709
https://access.redhat.com/errata/RHSA-2017:2708
https://access.redhat.com/errata/RHSA-2017:1216
https://access.redhat.com/articles/2548661
http://www.ubuntu.com/usn/USN-3372-1
http://www.ubuntu.com/usn/USN-3270-1
http://www.ubuntu.com/usn/USN-3198-1
http://www.ubuntu.com/usn/USN-3194-1
http://www.ubuntu.com/usn/USN-3179-1
http://www.ubuntu.com/usn/USN-3087-2
http://www.ubuntu.com/usn/USN-3087-1
http://www.splunk.com/view/SP-CAAAPUE
http://www.splunk.com/view/SP-CAAAPSV
http://www.securitytracker.com/id/1036696
http://www.securityfocus.com/bid/95568
http://www.securityfocus.com/bid/92630
http://www.securityfocus.com/archive/1/archive/1/542005/100/0/threaded
http://www.securityfocus.com/archive/1/archive/1/541104/100/0/threaded
http://www.securityfocus.com/archive/1/archive/1/540341/100/0/threaded
http://www.securityfocus.com/archive/1/archive/1/540129/100/0/threaded
http://www.securityfocus.com/archive/1/archive/1/539885/100/0/threaded
http://www.securityfocus.com/archive/1/542005/100/0/threaded
http://www.securityfocus.com/archive/1/541104/100/0/threaded
http://www.securityfocus.com/archive/1/540341/100/0/threaded
http://www.securityfocus.com/archive/1/539885/100/0/threaded
http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20170322-01-openssl-en
http://www.debian.org/security/2016/dsa-3673
http://www-01.ibm.com/support/docview.wss?uid=swg21995039
http://www-01.ibm.com/support/docview.wss?uid=swg21991482
http://www-01.ibm.com/support/docview.wss?uid=nas8N1021697
http://seclists.org/fulldisclosure/2017/May/105
http://seclists.org/fulldisclosure/2017/Jul/31
http://rhn.redhat.com/errata/RHSA-2017-0462.html
http://rhn.redhat.com/errata/RHSA-2017-0338.html
http://rhn.redhat.com/errata/RHSA-2017-0337.html
http://rhn.redhat.com/errata/RHSA-2017-0336.html
http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00011.html
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2017-05/msg00076.html
http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00028.html
http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00023.html
http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2017-01/msg00068.html
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00029.html
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00013.html
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00011.html
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00024.html
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00023.html
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00022.html
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759