Uninitialized Data Disclosure Vulnerability in YARA 3.8.1

CVE-2018-19974 · MEDIUM Severity

AV:N/AC:M/AU:N/C:P/I:N/A:N

In YARA 3.8.1, bytecode in a specially crafted compiled rule can read uninitialized data from VM scratch memory in libyara/exec.c. This can allow attackers to discover addresses in the real stack (not the YARA virtual stack).

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