CVE-2025-6297

High

Description

It was discovered that dpkg-deb does not properly sanitize directory permissions when extracting a control member into a temporary directory, which is documented as being a safe operation even on untrusted data. This may result in leaving temporary files behind on cleanup. Given automated and repeated execution of dpkg-deb commands on adversarial .deb packages or with well compressible files, placed inside a directory with permissions not allowing removal by a non-root user, this can end up in a DoS scenario due to causing disk quota exhaustion or disk full conditions.

SeverityHigh
CVSS8.2
Exploit probability—
ProductDebian Dpkg
PublishedJul 1, 2025
First seenJul 1, 2025

How to fix

Update
  • debian dpkg1.22.21 or later

Affected products

ProductAffected versionsFixed in
debian dpkgv < 1.22.211.22.21

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