# Rubyzip denial of service

Advisory record · `GHSA-5m2v-hc64-56h6`

- **Identifiers:** `GHSA-5m2v-hc64-56h6` · `CVE-2019-16892`
- **State:** Confirmed
- **Severity:** CVSS 5.5 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-400](https://cwe.mitre.org/data/definitions/400.html)
- **Tags:** [Denial of service](https://agentprime.io/advisories/tag/dos.md)
- **Published:** 30 Sept 2019
- **Updated:** 16 Feb 2024
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 30 Sept 2019, 16:05 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `rubyzip` (RubyGems): affected `<1.3.0`; fixed in `1.3.0`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 5.5 Medium, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.016, the 75th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 30 Sept 2019. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-5m2v-hc64-56h6](https://github.com/advisories/GHSA-5m2v-hc64-56h6)
- [OSV: GHSA-5m2v-hc64-56h6](https://osv.dev/vulnerability/GHSA-5m2v-hc64-56h6)
- <https://nvd.nist.gov/vuln/detail/CVE-2019-16892>
- <https://github.com/rubyzip/rubyzip/pull/403>
- <https://github.com/rubyzip/rubyzip/commit/d65fe7bd283ec94f9d6dc7605f61a6b0dd00f55e>
- <https://access.redhat.com/errata/RHBA-2019:4047>
- <https://access.redhat.com/errata/RHSA-2019:4201>
- <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/package-announce@lists.fedoraproject.org/message/J45KSFPP6DFVWLC7Z73L7SX735CKZYO6>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-5m2v-hc64-56h6>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-5m2v-hc64-56h6/>. Everything for agents: <https://agentprime.io/llms.txt>.