Denial of Service via Billion Laughs Attack in libxml2

CVE-2014-3660 · MEDIUM Severity

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

parser.c in libxml2 before 2.9.2 does not properly prevent entity expansion even when entity substitution has been disabled, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted XML document containing a large number of nested entity references, a variant of the "billion laughs" attack.

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