RubyGems up to 2.6.12 Query Command input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in RubyGems up to 2.6.12. This impacts an unknown function of the component Query Command Handler. The manipulation leads to input validation. This vulnerability is traded as CVE-2017-0900. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in RubyGems up to 2.6.12 (Programming Language Software). This issue affects some unknown processing of the component Query Command Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

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.

The bug was discovered 08/29/2017. The weakness was shared 08/31/2017 (Website). The advisory is shared at blog.rubygems.org. The identification of this vulnerability is CVE-2017-0900 since 11/30/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 103470 (Debian DLA-1112-1 : rubygems security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176143 (Debian Security Update for ruby2.3 (DSA 3966-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (103470), SecurityFocus (BID 100579†) and CERT Bund (WID-SEC-2026-1421). The entries VDB-106032, VDB-106048, VDB-106050 and VDB-106051 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Open Source CentOS
  • Red Hat Enterprise Linux
  • Open Source Ruby
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 103470
Nessus Name: Debian DLA-1112-1 : rubygems security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53376
OpenVAS Name: Debian Security Advisory DSA 3966-1 (ruby2.3 - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: github.com

Timelineinfo

11/30/2016 🔍
08/29/2017 +272 days 🔍
08/31/2017 +2 days 🔍
08/31/2017 +0 days 🔍
09/01/2017 +1 days 🔍
09/01/2017 +0 days 🔍
09/26/2017 +25 days 🔍
09/27/2017 +1 days 🔍
05/10/2026 +3147 days 🔍

Sourcesinfo

Product: github.com

Advisory: RHSA-2017:3485
Researcher: Yusuke Endoh.
Status: Confirmed

CVE: CVE-2017-0900 (🔍)
GCVE (CVE): GCVE-0-2017-0900
GCVE (VulDB): GCVE-100-106049

OVAL: 🔍

SecurityFocus: 100579 - RubyGems CVE-2017-0900 Denial of Service Vulnerability
SecurityTracker: 1039249
CERT Bund: WID-SEC-2026-1421 - Ruby: Mehrere Schwachstellen

See also: 🔍

Entryinfo

Created: 09/01/2017 09:03
Updated: 05/10/2026 11:47
Changes: 09/01/2017 09:03 (69), 11/12/2019 15:22 (11), 01/10/2021 14:34 (3), 01/10/2021 14:39 (1), 12/27/2022 14:22 (4), 05/10/2026 11:47 (23)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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