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rubygems: Path traversal when writing to a symlinked basedir outside of the root

🗓️ 29 Nov 2018 10:23:00Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 4 Views

RubyGems before 2.7.6 has a directory traversal flaw in install_location when writing to a symlinked base directory.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7aarch64rh-ruby25-ruby0:2.5.3-6.el7rh-ruby25-ruby-0:2.5.3-6.el7.aarch64.rpm
Red Hat Enterprise Linux7ppc64lerh-ruby25-ruby0:2.5.3-6.el7rh-ruby25-ruby-0:2.5.3-6.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xrh-ruby25-ruby0:2.5.3-6.el7rh-ruby25-ruby-0:2.5.3-6.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64rh-ruby25-ruby0:2.5.3-6.el7rh-ruby25-ruby-0:2.5.3-6.el7.x86_64.rpm
Red Hat Enterprise Linux7aarch64rh-ruby25-ruby-debuginfo0:2.5.3-6.el7rh-ruby25-ruby-debuginfo-0:2.5.3-6.el7.aarch64.rpm
Red Hat Enterprise Linux7ppc64lerh-ruby25-ruby-debuginfo0:2.5.3-6.el7rh-ruby25-ruby-debuginfo-0:2.5.3-6.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xrh-ruby25-ruby-debuginfo0:2.5.3-6.el7rh-ruby25-ruby-debuginfo-0:2.5.3-6.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64rh-ruby25-ruby-debuginfo0:2.5.3-6.el7rh-ruby25-ruby-debuginfo-0:2.5.3-6.el7.x86_64.rpm
Red Hat Enterprise Linux7aarch64rh-ruby25-ruby-devel0:2.5.3-6.el7rh-ruby25-ruby-devel-0:2.5.3-6.el7.aarch64.rpm
Red Hat Enterprise Linux7ppc64lerh-ruby25-ruby-devel0:2.5.3-6.el7rh-ruby25-ruby-devel-0:2.5.3-6.el7.ppc64le.rpm
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28 Jun 2026 12:06Current
7.2High risk
Vulners AI Score7.2
CVSS 25
CVSS 37.5
EPSS0.05076
4