Nokogiri gem, via libxml, is affected by DoS vulnerabilities

Description

References

• nvd.nist.gov/vuln/detail/CVE-2017-15412 · ADVISORY
• sparklemotion/nokogiri · WEB
• access.redhat.com/errata/RHSA-2017:3401 · WEB
• access.redhat.com/errata/RHSA-2018:0287 · WEB
• bugzilla.gnome.org/show_bug.cgi · WEB
• chromereleases.googleblog.com/2017/12/stable-channel-update-for-desktop.html · WEB
• crbug.com/727039 · WEB
• rubysec/ruby-advisory-db · WEB
• lists.debian.org/debian-lts-announce/2017/12/msg00014.html · WEB
• security.gentoo.org/glsa/201801-03 · WEB
• web.archive.org/web/20201208155618/http://www.securitytracker.com/id/1040348 · WEB
• debian.org/security/2018/dsa-4086

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