CVE-2025-6297
dpkg-deb: Fix cleanup for control member with restricted directories
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dpkg-deb: Fix cleanup for control member with restricted directories
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.
Reserved 2025-06-19 | Published 2025-07-01 | Updated 2025-07-01 | Assigner debiangit.dpkg.org/...?id=ed6bbd445dd8800308c67236ba35d08004c98e82
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