CVE-2018-1000074

Description

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.

How to fix CVE-2018-1000074

To remediate CVE-2018-1000074, upgrade the affected package to a fixed version below.

• —upgrade to 9.1.17.0-1 or later
• —upgrade to 1.5.6-5+deb7u2 or later
• —upgrade to 1.5.6-9+deb8u1 or later
• —upgrade to 3.2.0~rc.1-1 or later
• —upgrade to 9.1.16.0 or later
• —upgrade to 2.7.6 or later

Is CVE-2018-1000074 being exploited?

Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.

Affected packages (6)

• from 0, < 9.1.17.0-1
• from 0, < 1.5.6-5+deb7u2
• from 0, < 1.5.6-9+deb8u1
• from 0, < 3.2.0~rc.1-1
• from 0, < 9.1.16.0
• from 0, < 2.7.6

CVSS scores

References (22)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2018-1000074
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2018-1000074
• WEBblog.rubygems.org/2018/02/15/2.7.6-released.html
• WEBlists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html