CVE-2018-1000079

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 Directory Traversal vulnerability in gem installation that can result in the gem could write to arbitrary filesystem locations during installation. This attack appear to be exploitable via the victim must install a malicious gem. This vulnerability appears to have been fixed in 2.7.6.

How to fix CVE-2018-1000079

To remediate CVE-2018-1000079, upgrade the affected package to a fixed version below.

• —upgrade to 9.1.17.0-1 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-2018-1000079 being exploited?

Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.

Affected packages (4)

• from 0, < 9.1.17.0-1
• from 0, < 3.2.0~rc.1-1
• from 0, < 9.1.16.0
• from 0, < 2.7.6

CVSS scores

References (20)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2018-1000079
• WEBblog.rubygems.org/2018/02/15/2.7.6-released.html
• WEBlists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
• WEBaccess.redhat.com/errata/RHSA-2018:3729
• WEB