CVE-2017-14033

7.5 HIGH 8% exploit odds Fix listed Memory safety Library

What it is

The decode method in the OpenSSL::ASN1 module in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows attackers to cause a denial of service (interpreter crash) via a crafted string.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of service disruption.
Exploit odds: 7.7% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2017-09-19 17:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 01:05 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 7.7% in the next 30 days (EPSS).
Severity: 7.5 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2017-09-19 17:29 UTC
Last modified: 2026-06-17 01:05 UTC
Exploit probability: 7.7% · EPSS, next 30 days
Weakness: CWE-119 · Buffer errors
Record status: Modified

Affected

ruby-lang Ruby 2.2.0
ruby-lang Ruby 2.2.1
ruby-lang Ruby 2.2.2
ruby-lang Ruby 2.2.3
ruby-lang Ruby 2.2.4
ruby-lang Ruby 2.2.5
ruby-lang Ruby 2.2.6
ruby-lang Ruby 2.2.7

Attack profile CVSS 3.0 · 7.5

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Raw vector

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

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2017-14033.md and follow it. Check whether this project is affected by CVE-2017-14033. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record