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CVE-2017-16516

25
FAUCET Score

CVE-2017-16516 describes a denial-of-service vulnerability in the yajl-ruby gem version 1.3.0, affecting Debian Linux and the yajl-ruby project. A specially crafted JSON file can cause the entire Ruby process to crash via a SIGABRT in the yajl_string_decode function, leading to service termination. This vulnerability has a CVSS score of 7.5 (High), indicating it can be exploited remotely with low complexity and without user interaction, resulting in high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.3.0CPE matchmatch criteria
cpe:2.3:a:yajl-ruby_project:yajl-ruby:1.3.0:*:*:*:*:ruby:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.77%
Probability of exploitation in next 30 days
EPSS Percentile
88.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0377 is in the 80th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

rubygemspatch availablevia ghsa
Product: yajl-rubyFixed in: 1.3.1
redhatno patchvia redhat_api
Product: Red Hat OpenStack Platform 13 (Queens) Operational ToolsFixed in: rubygem-yajl-ruby
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 8 (Liberty) Operational ToolsFixed in: rubygem-yajl-ruby
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 9 (Mitaka) Operational ToolsFixed in: rubygem-yajl-ruby
redhatend of lifevia redhat_api
Product: Red Hat Virtualization 4Fixed in: rubygem-yajl-ruby
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) Operational ToolsFixed in: rubygem-yajl-ruby
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 10 (Newton) Operational ToolsFixed in: rubygem-yajl-ruby
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 11 (Ocata) Operational ToolsFixed in: rubygem-yajl-ruby
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 12 (Pike) Operational ToolsFixed in: rubygem-yajl-ruby

Vendor Advisories (2)

rubygemsGHSA-wwh7-4jw9-33x6high

yajl-ruby gem Denial of Service vulnerability

Nov 28, 2017
redhatCVE-2017-16516Moderate

rubygem-yajl-ruby: Yajl:: Parser.new.parse incorrect parsing

Nov 2, 2017

References

github.com / brianmario/yajl-ruby/issues/176
ExploitThird Party Advisory
lists.debian.org / debian-lts-announce/2017/11/msg00010.html
Third Party Advisory
lists.debian.org / debian-lts-announce/2023/07/msg00013.html
lists.debian.org / debian-lts-announce/2023/08/msg00003.html
rubygems.org / gems/yajl-ruby
Third Party Advisory