CVE-2020-25739: XSS
First published: Wed Sep 23 2020(Updated: )
An issue was discovered in the gon gem before gon-6.4.0 for Ruby. MultiJson does not honor the escape_mode parameter to escape fields as an XSS protection mechanism. To mitigate, json_dumper.rb in gon now does escaping for XSS by default without relying on MultiJson.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| rubygems/gon | <6.4.0 | 6.4.0 |
| Gon Project Gon | <6.4.0 | |
| Canonical Ubuntu Linux | =18.04 | |
| Debian Debian Linux | =9.0 | |
| debian/ruby-gon | 6.4.0-1 6.4.0-2 | |
| ubuntu/ruby-gon | <6.1.0-1+ | 6.1.0-1+ |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2020-25739
- https://github.com/gazay/gon/commit/fe3c7b2191a992386dc9edd37de5447a4e809bc7
- https://lists.debian.org/debian-lts-announce/2020/09/msg00018.html
- https://usn.ubuntu.com/4560-1/
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/gon/CVE-2020-25739.yml
- https://github.com/advisories/GHSA-78vq-9j56-wrfr (Advisory)
- https://launchpad.net/bugs/cve/CVE-2020-25739
- https://security-tracker.debian.org/tracker/CVE-2020-25739
- https://ubuntu.com/security/notices/USN-4560-1
- https://www.cve.org/CVERecord?id=CVE-2020-25739
- https://ubuntu.com/security/CVE-2020-25739
- collector/github-advisory-latest
- alias/GHSA-78vq-9j56-wrfr
- alias/CVE-2020-25739
- collector/github-advisory
- collector/nvd-index
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/severity
- agent/remedy
- agent/weakness
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- collector/security-tracker-debian
- source/Debian
- collector/usn-cve
- source/Ubuntu
- agent/references
- agent/softwarecombine
- agent/tags
- agent/trending
- package-manager/rubygems
- vendor/gon project
- canonical/gon project gon
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/18.04
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0
- package-manager/debian
- package-manager/ubuntu