UBUNTU-CVE-2018-1000074

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UBUNTU-CVE-2018-1000074

Summary:

Details: 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 Deserialization of Untrusted Data vulnerability in owner command that can result in code execution. This attack appear to be exploitable via victim must run the `gem owner` command on a gem with a specially crafted YAML file. This vulnerability appears to have been fixed in 2.7.6.

References: https://ubuntu.com/security/CVE-2018-1000074, https://github.com/rubygems/rubygems/commit/254e3d0ee873c008c0b74e8b8abcbdab4caa0a6d, https://www.ruby-lang.org/en/news/2018/02/17/multiple-vulnerabilities-in-rubygems/, https://ubuntu.com/security/notices/USN-3621-1, https://ubuntu.com/security/notices/USN-3621-2, https://ubuntu.com/security/notices/USN-3685-1, https://www.cve.org/CVERecord?id=CVE-2018-1000074