CVE-2026-2219
Description
A flaw was found in dpkg-deb, a component of the Debian package management system. This vulnerability allows a local user to trigger a Denial of Service (DoS) by providing a specially crafted zstd-compressed .deb archive. The flaw occurs because dpkg-deb does not properly validate the end of the data stream during decompression, leading to an infinite loop that consumes CPU resources. This can make the system unresponsive.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Other,Integrity,Availability
Technical Impact: Varies by Context; DoS: Resource Consumption (CPU); Modify Memory; Read Memory
When the quantity is not properly validated, then attackers can specify malicious quantities to cause excessive resource allocation, trigger unexpected failures, enable buffer overflows, etc.
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
