CVE-2017-0900
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 8.49% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- rubygems/rubygems · debian/debian linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation
- Source
- support@hackerone.com
EPSS 8.5% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://blog.rubygems.org/2017/08/27/2.6.13-released.htmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/100579Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039249Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:3485Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0378Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0583Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0585Third Party Advisory
- https://github.com/rubygems/rubygems/commit/8a38a4fc24c6591e6c8f43d1fadab6efeb4d6251Patch, Third Party Advisory
- https://hackerone.com/reports/243003Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201710-01Third Party Advisory
- https://www.debian.org/security/2017/dsa-3966Third Party Advisory
- http://blog.rubygems.org/2017/08/27/2.6.13-released.htmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/100579Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039249Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:3485Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0378Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0583Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0585Third Party Advisory
- https://github.com/rubygems/rubygems/commit/8a38a4fc24c6591e6c8f43d1fadab6efeb4d6251Patch, Third Party Advisory
- https://hackerone.com/reports/243003Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201710-01Third Party Advisory
- https://www.debian.org/security/2017/dsa-3966Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.