CVE-2017-14033

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-09-19 · updated 2026-06-17
Weakness: CWE-119

Description

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.

Affected products

Ruby: 2.2.0, 2.2.0-preview1, 2.2.0-preview2, 2.2.0-rc1, 2.2.1, 2.2.2 (+18)

References

http://www.securityfocus.com/bid/100868
http://www.securitytracker.com/id/1039363
http://www.securitytracker.com/id/1042004
https://access.redhat.com/errata/RHSA-2018:0378
https://access.redhat.com/errata/RHSA-2018:0583
https://access.redhat.com/errata/RHSA-2018:0585
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
https://security.gentoo.org/glsa/201710-18
https://www.debian.org/security/2017/dsa-4031
https://www.ruby-lang.org/en/news/2017/09/14/openssl-asn1-buffer-underrun-cve-2017-14033/
https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-2-8-released/
https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-3-5-released/

Get alerted when CVE-2017-14033 or the next vulnerability affects your stack