Ubuntu Security Notice 2242-1 - It was discovered that dpkg incorrectly handled certain patches when unpacking source packages. If a user or an automated system were tricked into unpacking a specially crafted source package, a remote attacker could modify files outside the target unpack directory, leading to a denial of service or potentially gaining access to the system.
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Debian Linux Security Advisory 2953-1 - Multiple vulnerabilities were discovered in dpkg that allow file modification through path traversal when unpacking source packages with especially-crafted patch files.
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