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Fixed

LIN1021-16493 : Security Advisory - dpkg - CVE-2025-6297

Created: Jul 1, 2025    Updated: Jun 8, 2026
Resolved Date: Jun 8, 2026
Found In Version: 10.21.20.1
Fix Version: 10.21.20.27
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Userspace

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.

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