Detections
Analytics

SCA: security update for rubygems-update (GHSA-qv62-xfj6-32xm)

medium Tenable Cloud Security Plugin ID 434658

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - RubyGems 2.0.x before 2.0.17, 2.2.x before 2.2.5, and 2.4.x before 2.4.8 does not validate the hostname
 when fetching gems or making API requests, which allows remote attackers to redirect requests to arbitrary
 domains via a crafted DNS SRV record with a domain that is suffixed with the original domain name, aka a
 "DNS hijack attack." NOTE: this vulnerability exists because to an incomplete fix for CVE-2015-3900.
 (CVE-2015-4020)

See Also

https://github.com/advisories/GHSA-qv62-xfj6-32xm

Plugin Details

Severity: Medium

ID: 434658

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 8/19/2025

Updated: 6/22/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2015-4020

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/17/2022

Vulnerability Publication Date: 6/16/2015

Reference Information

CVE: CVE-2015-4020

BID: 75431

cwe: CWE-20