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CVE-2017-0902

CVE-2017-0902

EPSS 4.8%CWE-350
RubyGems version 2.6.12 and earlier is vulnerable to a DNS hijacking vulnerability that allows a MITM attacker to force the RubyGems client to download and install gems from a server that the attacker controls.
Affected products
HackerOne · RubyGems

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References
http://blog.rubygems.org/2017/08/27/2.6.13-released.htmlhttps://access.redhat.com/errata/RHSA-2017:3485https://access.redhat.com/errata/RHSA-2018:0378https://access.redhat.com/errata/RHSA-2018:0583https://access.redhat.com/errata/RHSA-2018:0585https://github.com/rubygems/rubygems/commit/8d91516fb7037ecfb27622f605dc40245e0f8d32https://hackerone.com/reports/218088https://lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlhttps://security.gentoo.org/glsa/201710-01https://usn.ubuntu.com/3553-1/https://usn.ubuntu.com/3685-1/https://www.debian.org/security/2017/dsa-3966