--- title: "CVE-2017-0900\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2017-0900?format=md keywords: index, follow --- # CVE-2017-0900 Publication date 31 August 2017 Last updated 11 July 2025 --- Ubuntu priority **Negligible** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) ## Cvss 3 Severity Score **7.5 · High** [Score breakdown](https://ubuntu.com/security/CVE-2017-0900?format=md#impact-score) Toggle side navigation ## Description RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications to cause a denial of service attack against RubyGems clients who have issued a `query` command. [Read the notes from the security team](https://ubuntu.com/security/CVE-2017-0900?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | jruby | 26.04 LTS resolute | Needs evaluation | | 25.10 questing | Ignored end of life, was needs-triage | | 25.04 plucky | Ignored end of life, was needs-triage | | 24.10 oracular | Ignored end of life, was needs-triage | | 24.04 LTS noble | Needs evaluation | | 23.10 mantic | Ignored end of life, was needs-triage | | 23.04 lunar | Ignored end of life, was needs-triage | | 21.10 impish | Ignored end of life | | 21.04 hirsute | Ignored end of life | | 20.10 groovy | Ignored end of life | | 20.04 LTS focal | Vulnerable | | 19.10 eoan | Ignored end of life | | 19.04 disco | Ignored end of life | | 18.10 cosmic | Ignored end of life | | 18.04 LTS bionic | Vulnerable | | 17.10 artful | Ignored end of life | | 17.04 zesty | Ignored end of life | | 16.04 LTS xenial | Vulnerable | | 14.04 LTS trusty | Needs evaluation | | ruby1.9.1 | 26.04 LTS resolute | Not in release | | 25.10 questing | Not in release | | 25.04 plucky | Not in release | | 24.10 oracular | Not in release | | 24.04 LTS noble | Not in release | | 23.10 mantic | Not in release | | 23.04 lunar | Not in release | | 22.10 kinetic | Not in release | | 22.04 LTS jammy | Not in release | | 21.10 impish | Not in release | | 21.04 hirsute | Not in release | | 20.10 groovy | Not in release | | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.10 cosmic | Not in release | | 18.04 LTS bionic | Not in release | | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Fixed 1.9.3.484-2ubuntu1.5 | | ruby2.0 | 26.04 LTS resolute | Not in release | | 25.10 questing | Not in release | | 25.04 plucky | Not in release | | 24.10 oracular | Not in release | | 24.04 LTS noble | Not in release | | 23.10 mantic | Not in release | | 23.04 lunar | Not in release | | 22.10 kinetic | Not in release | | 22.04 LTS jammy | Not in release | | 21.10 impish | Not in release | | 21.04 hirsute | Not in release | | 20.10 groovy | Not in release | | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.10 cosmic | Not in release | | 18.04 LTS bionic | Not in release | | 17.10 artful | Not in release | | 17.04 zesty | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | ruby2.3 | 26.04 LTS resolute | Not in release | | 25.10 questing | Not in release | | 25.04 plucky | Not in release | | 24.10 oracular | Not in release | | 24.04 LTS noble | Not in release | | 23.10 mantic | Not in release | | 23.04 lunar | Not in release | | 22.10 kinetic | Not in release | | 22.04 LTS jammy | Not in release | | 21.10 impish | Not in release | | 21.04 hirsute | Not in release | | 20.10 groovy | Not in release | | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.10 cosmic | Not in release | | 18.04 LTS bionic | Not in release | | 17.10 artful | Ignored end of life | | 17.04 zesty | Ignored end of life | | 16.04 LTS xenial | Fixed 2.3.1-2~16.04.6 | | 14.04 LTS trusty | Not in release | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) * [Patch details](https://ubuntu.com/security/CVE-2017-0900?format=md#patch-details) ## Notes --- ### [tyhicks](https://launchpad.net/~tyhicks) ruby{1.9.1,2.0,2.3} and jruby ship an embedded rubygems. --- ### [rodrigo-zaiden](https://launchpad.net/~rodrigo-zaiden) ruby2.3 (xenial) was fixed back in release version 2.3.1-2~16.04.6. The patch that fixed this CVE came along with other CVEs fixes (CVE-2017-0899, CVE-2017-0900, CVE-2017-0901, CVE-2017-0902) and at that time this CVE was not included in the changelog. ### Patch details For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) | Package | Patch details | | --- | --- | | ruby1.9.1 | * Upstream: [8a38a4f](https://github.com/rubygems/rubygems/commit/8a38a4fc24c6591e6c8f43d1fadab6efeb4d6251) * Upstream: * Upstream: | ## Severity score breakdown CVSS version: CVSS v3.0 **Base score** 7.5 · High * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Network | | Attack complexity | Low | | Privileges required | None | | User interaction | None | | Scope | Unchanged | | Confidentiality impact | None | | Integrity impact | None | | Availability impact | High | * Scores | Parameter | Value | | --- | --- | | Base score | 7.5 · High | | Exploitability score | - | | Impact score | - | **Vector:** CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-0900) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2017-0900) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-0900) * [Debian](https://security-tracker.debian.org/tracker/CVE-2017-0900) ### Related Ubuntu Security Notices (USN) + [USN-3439-1](https://usn.ubuntu.com/USN-3439-1) + Ruby vulnerabilities + 5 October 2017 ### Other references * * *