CVE-2026-2219
Infinite Loop DoS in dpkg-deb via Zstd Archive Validation Flaw
Publication date: 2026-03-07
Last updated on: 2026-03-09
Assigner: Debian GNU/Linux
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| debian | dpkg | *-*-*-*-*-*-* |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-835 | The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The vulnerability exists in dpkg-deb, a component of the Debian package management system. It fails to properly validate the end of the data stream when uncompressing a zstd-compressed .deb archive. This improper validation can cause the system to enter an infinite loop, spinning the CPU indefinitely.
How can this vulnerability impact me? :
This vulnerability can lead to a denial of service condition by causing the CPU to spin in an infinite loop. This can degrade system performance or make the system unresponsive while processing a specially crafted zstd-compressed .deb archive.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know