Recursive Tokenizer Vulnerability in QPDF 6.0.0 and 7.0.b1

CVE-2017-12595 · MEDIUM Severity

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

The tokenizer in QPDF 6.0.0 and 7.0.b1 is recursive for arrays and dictionaries, which allows remote attackers to cause a denial of service (stack consumption and segmentation fault) or possibly have unspecified other impact via a PDF document with a deep data structure, as demonstrated by a crash in QPDFObjectHandle::parseInternal in libqpdf/QPDFObjectHandle.cc.

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