CVE-2018-1000073: Improper Link Resolution Before File Access ('Link Following')
(updated )
RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Directory Traversal vulnerability in install_location function of package.rb that can result in path traversal when writing to a symlinked basedir outside of the root. This vulnerability appears to have been fixed in 2.7.6.
References
- blog.rubygems.org/2018/02/15/2.7.6-released.html
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
- access.redhat.com/errata/RHSA-2018:3729
- access.redhat.com/errata/RHSA-2018:3730
- access.redhat.com/errata/RHSA-2018:3731
- access.redhat.com/errata/RHSA-2019:2028
- access.redhat.com/errata/RHSA-2020:0542
- access.redhat.com/errata/RHSA-2020:0591
- access.redhat.com/errata/RHSA-2020:0663
- bugs.debian.org/cgi-bin/bugreport.cgi?bug=925986
- github.com/advisories/GHSA-gx69-6cp4-hxrj
- github.com/jruby/jruby/commit/0b06b48ab4432237ce5fc1bef47f2c6bcf7843f7
- github.com/rubygems/rubygems/commit/1b931fc03b819b9a0214be3eaca844ef534175e2
- github.com/rubygems/rubygems/commit/666ef793cad42eed96f7aee1cdf77865db921099
- lists.debian.org/debian-lts-announce/2018/08/msg00028.html
- nvd.nist.gov/vuln/detail/CVE-2018-1000073
- usn.ubuntu.com/3621-1/
- www.debian.org/security/2018/dsa-4219
- www.debian.org/security/2018/dsa-4259
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