Cross-site Scripting (XSS) The advisory has been revoked - it doesn't affect any version of package ruby-rack (opens in a new tab)
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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Start learning- Snyk IDSNYK-UBUNTU2010-RUBYRACK-1032473
- published2 Dec 2018
- disclosed13 Nov 2018
Introduced: 13 Nov 2018
CVE-2018-16471 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:20.10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ruby-rack package and not the ruby-rack package as distributed by Ubuntu.
There is a possible XSS vulnerability in Rack before 2.0.6 and 1.6.11. Carefully crafted requests can impact the data returned by the scheme method on Rack::Request. Applications that expect the scheme to be limited to 'http' or 'https' and do not escape the return value could be vulnerable to an XSS attack. Note that applications using the normal escaping mechanisms provided by Rails may not impacted, but applications that bypass the escaping mechanisms, or do not use them may be vulnerable.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-16471
- https://lists.debian.org/debian-lts-announce/2018/11/msg00022.html
- https://security-tracker.debian.org/tracker/CVE-2018-16471
- https://groups.google.com/forum/#!topic/rubyonrails-security/GKsAFT924Ag
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00032.html
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00016.html
- https://usn.ubuntu.com/4089-1/
- https://groups.google.com/forum/#%21topic/rubyonrails-security/GKsAFT924Ag