Uninitialized Pointer Dereference and Remote Code Execution in chrony before 1.31.1

CVE-2015-1822 · MEDIUM Severity

AV:N/AC:L/AU:S/C:P/I:P/A:P

chrony before 1.31.1 does not initialize the last "next" pointer when saving unacknowledged replies to command requests, which allows remote authenticated users to cause a denial of service (uninitialized pointer dereference and daemon crash) or possibly execute arbitrary code via a large number of command requests.

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