01 Record

CVE-2017-14033

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.

UnratedPUBLISHEDCNA: mitre

CNA base scoreUnratedNo CNA CVSS vector

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02 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.

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 7.73% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 94.3% of scored records. A rank, not a probability.
NVD base score: 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2017-09-19 17:00Z9 YR AGO

Last updated

2024-08-05 19:13Z2 YR AGO

Reserved

2017-08-30

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass

Data version

5.1

Document digest

7a12180d8a8097572ade07219202ad6cedec2d9e1ab77314382763930586a900

05 Affected products

VendorProductVersionsPlatforms

redhatcloudforms_managementengineNot specified—

redhatenterprise_linuxNot specified—

redhatrhel_software_collectionsNot specified—

rhel_sam1Not specified—

ruby-langrubyNot specified—

06 References

access.redhat.comRHSA-2018:0585https://access.redhat.com/errata/RHSA-2018:0585vendor-advisoryx_refsource_REDHAT
www.ruby-lang.orghttps://www.ruby-lang.org/en/news/2017/09/14/ruby-2-3-5-released/x_refsource_CONFIRM
access.redhat.comRHSA-2018:0378https://access.redhat.com/errata/RHSA-2018:0378vendor-advisoryx_refsource_REDHAT
www.securitytracker.com1042004http://www.securitytracker.com/id/1042004vdb-entryx_refsource_SECTRACK
www.debian.orgDSA-4031https://www.debian.org/security/2017/dsa-4031vendor-advisoryx_refsource_DEBIAN
www.ruby-lang.orghttps://www.ruby-lang.org/en/news/2017/09/14/ruby-2-2-8-released/x_refsource_CONFIRM
www.securitytracker.com1039363http://www.securitytracker.com/id/1039363vdb-entryx_refsource_SECTRACK
lists.debian.org[debian-lts-announce] 20180714 [SECURITY] [DLA 1421-1] ruby2.1 security updatehttps://lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlmailing-listx_refsource_MLIST
access.redhat.comRHSA-2018:0583https://access.redhat.com/errata/RHSA-2018:0583vendor-advisoryx_refsource_REDHAT
www.ruby-lang.orghttps://www.ruby-lang.org/en/news/2017/09/14/openssl-asn1-buffer-underrun-cve-2017-14033/x_refsource_CONFIRM
www.securityfocus.com100868http://www.securityfocus.com/bid/100868vdb-entryx_refsource_BID
security.gentoo.orgGLSA-201710-18https://security.gentoo.org/glsa/201710-18vendor-advisoryx_refsource_GENTOO

07 Fixed in

Ubuntu 14.04 LTS

ruby1.9.1
Fixed in 1.9.3.484-2ubuntu1.5

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

ruby2.3
Fixed in 2.3.1-2~16.04.5

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.