In Rubyzip before 1.3.0, a crafted ZIP file can bypass application checks on ZIP entry…
Priority LOW 28CWE-400Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.
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).
Why it matters now
EPSS 0.01581 75th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed rubyzip (RubyGems): 1.3.0Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | rubyzip (RubyGems) | before 1.3.0 | 1.3.0 | Patch available | GHSA-5m2v-hc64-56h6 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- rubyzip (RubyGems) Vendor— Affected before 1.3.0 Fixed in 1.3.0 Patch available GHSA-5m2v-hc64-56h6
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:rubyzip_project:rubyzip:*:*:*:*:*:*:*:* | before 1.3.0 | Vulnerable | Rubyzip Project |
| cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* | 29 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* | 30 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | 31 | Vulnerable | Fedoraproject |
| cpe:2.3:a:redhat:cloudforms:4.7:*:*:*:*:*:*:* | 4.7 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:cloudforms:5.11:*:*:*:*:*:*:* | 5.11 | Vulnerable | Red Hat |
- cpe:2.3:a:rubyzip_project:rubyzip:*:*:*:*:*:*:*:* Versions before 1.3.0 Vulnerable ·Rubyzip Project
- cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* Versions 29 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
- cpe:2.3:a:redhat:cloudforms:4.7:*:*:*:*:*:*:* Versions 4.7 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:cloudforms:5.11:*:*:*:*:*:*:* Versions 5.11 Vulnerable ·Red Hat
Remediation
- Fix · GHSA-5m2v-hc64-56h6 rubyzip (RubyGems) Fixed in 1.3.0 Advisory →
Red Hat 1 advisory
- RHSA-2019:4201 Released 2019-12-13 · Red Hat rating ModerateCloudForms 5.0.1 security, bug fix and enhancement update
- CloudForms Management Engine 5.11 cfme-5.11.1.2-1.el8cf, cfme-amazon-smartstate-5.11.1.2-1.el8cf, cfme-appliance-5.11.1.2-1.el8cf +6
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| CloudForms Management Engine 5.10 | Fixed | — |
| CloudForms Management Engine 5.11 | Fixed | RHSA-2019:4201 |
Timeline
- 2026-10-02 Threatist record created from CVE-2019-16892
- 2026-10-03 Alias added: GHSA-5m2v-hc64-56h6
References
Advisory 6
Other 9
- https://github.com/jdleesmiller/ruby-advisory-db/blob/master/gems/rubyzip/CVE-2019-16892.yml
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rubyzip/CVE-2019-16892.yml
- https://github.com/rubyzip/rubyzip
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J45KSFPP6DFVWLC7Z73L7SX735CKZYO6
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MWWPORMSBHZTMP4PGF4DQD22TTKBQMMC
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X255K6ZBAQC462PQN2ND5HOTTQEJ2G2X
- https://lists.fedoraproject.org/archives/list/[email protected]/message/J45KSFPP6DFVWLC7Z73L7SX735CKZYO6
- https://lists.fedoraproject.org/archives/list/[email protected]/message/MWWPORMSBHZTMP4PGF4DQD22TTKBQMMC
- https://lists.fedoraproject.org/archives/list/[email protected]/message/X255K6ZBAQC462PQN2ND5HOTTQEJ2G2X
Sources
- CVE-2019-16892 · CVE Program
- CVE-2019-16892 · NVD
- FIRST EPSS
- GHSA-5m2v-hc64-56h6 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-16892 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences