CVE-2018-16396 Affecting rubygem-rdoc package, versions <0:4.0.0-36.amzn2.0.1
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-AMZN2-RUBYGEMRDOC-1673501
- published27 Sept 2021
- disclosed16 Nov 2018
Introduced: 16 Nov 2018
CVE-2018-16396 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2 rubygem-rdoc to version 0:4.0.0-36.amzn2.0.1 or higher.
This issue was patched in ALAS2-2019-1276.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rubygem-rdoc package and not the rubygem-rdoc package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 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
- https://security.netapp.com/advisory/ntap-20190221-0002/
- 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/
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16396
- https://www.debian.org/security/2018/dsa-4332
- https://hackerone.com/reports/385070
- https://lists.debian.org/debian-lts-announce/2018/10/msg00020.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
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
- https://usn.ubuntu.com/3808-1/