CVE-2017-17790: ruby-lang ruby
Vulnerability summary
CVE-2017-17790 is a critical (CVSS 9.8) vulnerability in ruby-lang ruby. EPSS estimates a 5.91% chance of exploitation in the next 30 days, higher than 93.2% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (GitHub, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 11 · Related 2Timeline
- 20-12-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The lazy_initialize function in lib/resolv.rb in Ruby through 2.4.3 uses Kernel#open, which might allow Command Injection attacks, as demonstrated by a Resolv::Hosts::new argument beginning with a '|' character, a different vulnerability than CVE-2017-17405. NOTE: situations with untrusted input may be highly unlikely.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
5.91%
Chance of exploitation in the next 30 days
Percentile
93%
Versus all other CVEs
30-day change
No change 0.00 pp
From 5.91% on 05-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundRuby
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu2 products
- ruby1.9.1< 1.9.3.484-2ubuntu1.7
- ruby2.3< 2.3.1-2~16.04.5
Ruby-lang1 product
- rubyEOL≥ 2.2, ≤ 2.2.8 | ≥ 2.3, ≤ 2.3.5 | ≥ 2.4, ≤ 2.4.2 | 2.5.0:preview1
2 vendors · 3 products
