Integer overflow in the (1) rb_ary_splice function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2; and (2) the rb_ary_replace function in 1.6.x allows context-dependent attackers to trigger memory corruption, aka the "beg + rlen" issue. NOTE: as of 20080624, there has been inconsistent usage of multiple CVE identifiers related to Ruby. The CVE description should be regarded as authoritative, although it is likely to change.
https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00937.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9959
https://exchange.xforce.ibmcloud.com/vulnerabilities/43351
https://bugs.launchpad.net/ubuntu/+source/ruby1.8/+bug/241657
http://www.vupen.com/english/advisories/2008/1981/references
http://www.vupen.com/english/advisories/2008/1907/references
http://www.ubuntu.com/usn/usn-621-1
http://www.securitytracker.com/id?1020347
http://www.securityfocus.com/bid/29903
http://www.securityfocus.com/archive/1/493688/100/0/threaded
http://www.rubyinside.com/june-2008-ruby-security-vulnerabilities-927.html
http://www.ruby-lang.org/en/news/2008/06/20/arbitrary-code-execution-vulnerabilities/
http://www.ruby-forum.com/topic/157034
http://www.redhat.com/support/errata/RHSA-2008-0561.html
http://www.redhat.com/archives/fedora-security-commits/2008-June/msg00005.html
http://www.matasano.com/log/1070/updates-on-drew-yaos-terrible-ruby-vulnerabilities/
http://www.mandriva.com/security/advisories?name=MDVSA-2008:142
http://www.mandriva.com/security/advisories?name=MDVSA-2008:141
http://www.mandriva.com/security/advisories?name=MDVSA-2008:140
http://www.debian.org/security/2008/dsa-1618
http://www.debian.org/security/2008/dsa-1612
http://weblog.rubyonrails.org/2008/6/21/multiple-ruby-security-vulnerabilities
http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=17460
http://support.apple.com/kb/HT2163
http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.429562
http://security.gentoo.org/glsa/glsa-200812-17.xml
http://secunia.com/advisories/33178
http://secunia.com/advisories/31687
http://secunia.com/advisories/31256
http://secunia.com/advisories/31181
http://secunia.com/advisories/31090
http://secunia.com/advisories/31062
http://secunia.com/advisories/30894
http://secunia.com/advisories/30875
http://secunia.com/advisories/30867
http://secunia.com/advisories/30831
http://secunia.com/advisories/30802
http://lists.opensuse.org/opensuse-security-announce/2008-08/msg00006.html
http://lists.apple.com/archives/security-announce/2008//Jun/msg00002.html