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Fencer Vulns
medium 5.5

CVE-2019-16892 json

Rubyzip denial of service

published 2019-09-25 7 y ago modified 2026-06-17 4 mo ago also GHSA-5m2v-hc64-56h6 , EUVD-2019-0653

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

Summary

In Rubyzip before 1.3.0, a crafted ZIP file can bypass application checks on ZIP entry sizes because data about the uncompressed size can be spoofed. This allows attackers to cause a denial of service (disk consumption).

Patch / fix

  • rubygems rubyzip 1.3.0
  • rubyzip_project rubyzip 1.3.0
  • ruby-zip Debian 14, Debian 13, Debian 12 2.0.0-1

debian advisories DEBIAN-CVE-2019-16892

  • cfme cloudforms managementengine 5.11 5.11.1.2-1.el8cf
  • cfme-gemset cloudforms managementengine 5.11 5.11.1.2-1.el8cf
  • cfme-appliance cloudforms managementengine 5.11 5.11.1.2-1.el8cf
  • v2v-conversion-host cloudforms managementengine 5.11 1.15.0-1.el8ev
  • cfme-appliance-tools cloudforms managementengine 5.11 5.11.1.2-1.el8cf
  • cfme-appliance-common cloudforms managementengine 5.11 5.11.1.2-1.el8cf
  • cfme-amazon-smartstate cloudforms managementengine 5.11 5.11.1.2-1.el8cf
  • v2v-conversion-host-ansible cloudforms managementengine 5.11 1.15.0-1.el8ev

red hat advisories RHSA-2019:4201RHBA-2019:4047

  • vagrant openSUSE Tumbleweed 2.2.18-1.3

opensuse advisories openSUSE-SU-2024:11491-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-16892 updated cvss 5.5

cfme: rubygem-rubyzip denial of service via crafted ZIP file

  • Red Hat CloudForms Management Engine 5.10 ruby 2.4.9-93.el7cf, cfme 5.10.13.1-1.el7cf, ruby-irb 2.4.9-93.el7cf, ruby-libs 2.4.9-93.el7cf, rubygems 2.6.14.4-93.el7cf, rubygem-rdoc 5.0.1-93.el7cf, +16 more
    fixed: vendor fix RHBA-2019:4047
  • Red Hat CloudForms Management Engine 5.11 cfme 5.11.1.2-1.el8cf, cfme-gemset 5.11.1.2-1.el8cf, cfme-appliance 5.11.1.2-1.el8cf, v2v-conversion-host 1.15.0-1.el8ev, cfme-appliance-tools 5.11.1.2-1.el8cf, cfme-appliance-common 5.11.1.2-1.el8cf, +3 more
    fixed: vendor fix RHSA-2019:4201

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.58% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/rubyzip/rubyzip/pull/403 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 7.1 AV:N/AC:M/Au:N/C:N/I:N/A:C
GitHub 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
rubygems rubyzip
<1.3.0
1.3.0

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.