CVE-2018-16396 Affecting ruby2.5 package, versions <2.5.1-1ubuntu1.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1804-RUBY25-384396
- published19 Oct 2018
- disclosed16 Nov 2018
Introduced: 19 Oct 2018
CVE-2018-16396 (opens in a new tab)How to fix?
Upgrade Ubuntu:18.04 ruby2.5 to version 2.5.1-1ubuntu1.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ruby2.5 package and not the ruby2.5 package as distributed by Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
An issue was discovered in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. It does not taint strings that result from unpacking tainted strings with some formats.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-16396
- https://www.ruby-lang.org/en/news/2018/10/17/not-propagated-taint-flag-in-some-formats-of-pack-cve-2018-16396/
- https://www.ruby-lang.org/en/news/2018/10/17/ruby-2-3-8-released/
- https://www.ruby-lang.org/en/news/2018/10/17/ruby-2-4-5-released/
- https://www.ruby-lang.org/en/news/2018/10/17/ruby-2-5-2-released/
- https://www.ruby-lang.org/en/news/2018/11/06/ruby-2-6-0-preview3-released/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16396
- https://www.debian.org/security/2018/dsa-4332
- https://lists.debian.org/debian-lts-announce/2018/10/msg00020.html
- https://security-tracker.debian.org/tracker/CVE-2018-16396
- https://hackerone.com/reports/385070
- https://security.netapp.com/advisory/ntap-20190221-0002/
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
- https://access.redhat.com/errata/RHSA-2018:3729
- https://access.redhat.com/errata/RHSA-2018:3730
- https://access.redhat.com/errata/RHSA-2018:3731
- https://access.redhat.com/errata/RHSA-2019:2028
- http://www.securitytracker.com/id/1042106
- https://usn.ubuntu.com/3808-1/