The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to conduct plaintext-recovery attacks against the initial bytes of a stream by sniffing network traffic that occasionally relies on keys affected by the Invariance Weakness, and then using a brute-force approach involving LSB values, aka the "Bar Mitzvah" issue.
https://www.secpod.com/blog/cve-2015-2808-bar-mitzvah-attack-in-rc4-2/
https://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5098709
https://security.gentoo.org/glsa/201512-10
https://kb.juniper.net/JSA10783
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05336888
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05289935
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05193347
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05085988
https://h20566.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04711380
https://h20566.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04708650
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04926789
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04832246
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04773256
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04773241
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04773119
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04772190
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04770140
https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04687922
http://www1.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-454055.htm
http://www.ubuntu.com/usn/USN-2706-1
http://www.ubuntu.com/usn/USN-2696-1
http://www.securitytracker.com/id/1036222
http://www.securitytracker.com/id/1033769
http://www.securitytracker.com/id/1033737
http://www.securitytracker.com/id/1033432
http://www.securitytracker.com/id/1033431
http://www.securitytracker.com/id/1033415
http://www.securitytracker.com/id/1033386
http://www.securitytracker.com/id/1033072
http://www.securitytracker.com/id/1033071
http://www.securitytracker.com/id/1032990
http://www.securitytracker.com/id/1032910
http://www.securitytracker.com/id/1032868
http://www.securitytracker.com/id/1032858
http://www.securitytracker.com/id/1032788
http://www.securitytracker.com/id/1032734
http://www.securitytracker.com/id/1032708
http://www.securitytracker.com/id/1032707
http://www.securitytracker.com/id/1032600
http://www.securitytracker.com/id/1032599
http://www.securityfocus.com/bid/91787
http://www.securityfocus.com/bid/73684
http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
http://www.huawei.com/en/psirt/security-advisories/hw-454055
http://www.debian.org/security/2015/dsa-3339
http://www.debian.org/security/2015/dsa-3316
http://www-304.ibm.com/support/docview.wss?uid=swg21960769
http://www-304.ibm.com/support/docview.wss?uid=swg21960015
http://www-304.ibm.com/support/docview.wss?uid=swg21903565
http://www-01.ibm.com/support/docview.wss?uid=swg21883640
http://www-01.ibm.com/support/docview.wss?uid=swg1IV71892
http://www-01.ibm.com/support/docview.wss?uid=swg1IV71888
http://rhn.redhat.com/errata/RHSA-2015-1526.html
http://rhn.redhat.com/errata/RHSA-2015-1243.html
http://rhn.redhat.com/errata/RHSA-2015-1242.html
http://rhn.redhat.com/errata/RHSA-2015-1241.html
http://rhn.redhat.com/errata/RHSA-2015-1230.html
http://rhn.redhat.com/errata/RHSA-2015-1229.html
http://rhn.redhat.com/errata/RHSA-2015-1228.html
http://rhn.redhat.com/errata/RHSA-2015-1091.html
http://rhn.redhat.com/errata/RHSA-2015-1021.html
http://rhn.redhat.com/errata/RHSA-2015-1020.html
http://rhn.redhat.com/errata/RHSA-2015-1007.html
http://rhn.redhat.com/errata/RHSA-2015-1006.html
http://marc.info/?l=bugtraq&m=144493176821532&w=2
http://marc.info/?l=bugtraq&m=144104565600964&w=2
http://marc.info/?l=bugtraq&m=144104533800819&w=2
http://marc.info/?l=bugtraq&m=144102017024820&w=2
http://marc.info/?l=bugtraq&m=144069189622016&w=2
http://marc.info/?l=bugtraq&m=144060606031437&w=2
http://marc.info/?l=bugtraq&m=144060576831314&w=2
http://marc.info/?l=bugtraq&m=144059703728085&w=2
http://marc.info/?l=bugtraq&m=144059660127919&w=2
http://marc.info/?l=bugtraq&m=144043644216842&w=2
http://marc.info/?l=bugtraq&m=143818140118771&w=2
http://marc.info/?l=bugtraq&m=143817899717054&w=2
http://marc.info/?l=bugtraq&m=143817021313142&w=2
http://marc.info/?l=bugtraq&m=143741441012338&w=2
http://marc.info/?l=bugtraq&m=143629696317098&w=2
http://marc.info/?l=bugtraq&m=143456209711959&w=2
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00047.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00046.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00040.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00039.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00022.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00014.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00013.html
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10727
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04779034