Heap Buffer Overflow vulnerability in qpdf 11.9.0 allows attackers to crash the application via the std::sharedcount() function at /bits/sharedptrbase.h.

An issue was discovered in QPDF version 10.0.4, allows remote attackers to execute arbitrary code via crafted .pdf file to PlASCII85Decoder::write parameter in libqpdf.

QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF::processXRefStream. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.

QPDF 9.x through 9.1.1 and 10.x through 10.0.4 has a heap-based buffer overflow in PlASCII85Decoder::write (called from PlAESPDF::flush and PlAESPDF::finish) when a certain downstream write fails.

In QPDF 8.2.1, in libqpdf/QPDFWriter.cc, QPDFWriter::unparseObject and QPDFWriter::unparseChild have recursive calls for a long time, which allows remote attackers to cause a denial of service via a crafted PDF file.

Last updated 25 August 2025

An issue was discovered in QPDF before 7.0.0. There is an infinite loop due to looping xref tables in QPDF.cc.

An issue was discovered in QPDF before 7.0.0. There is a large heap-based out-of-bounds read in the PlBuffer::write function in PlBuffer.cc. It is caused by an integer overflow in the PNG filter.

An issue was discovered in QPDF before 7.0.0. There is an infinite loop in the QPDFWriter::enqueueObject() function in libqpdf/QPDFWriter.cc.

An issue was discovered in QPDF before 7.0.0. There is a stack-based out-of-bounds read in the function iteraterc4 in QPDFencryption.cc.

An issue was discovered in QPDF before 7.0.0. Endless recursion causes stack exhaustion in QPDFTokenizer::resolveLiteral() in QPDFTokenizer.cc, related to the QPDF::resolve function in QPDF.cc.

Last updated 25 August 2025

A stack-consumption vulnerability was found in libqpdf in QPDF 6.0.0, which allows attackers to cause a denial of service via a crafted file, related to the PointerHolder function in PointerHolder.hh, aka an "infinite loop."

A stack-consumption vulnerability was found in libqpdf in QPDF 6.0.0, which allows attackers to cause a denial of service via a crafted file, related to the QPDFTokenizer::resolveLiteral function in QPDFTokenizer.cc after four consecutive calls to QPDFObjectHandle::parseInternal, aka an "infinite loop."

A stack-consumption vulnerability was found in libqpdf in QPDF 6.0.0, which allows attackers to cause a denial of service via a crafted file, related to the QPDF::resolveObjectsInStream function in QPDF.cc, aka an "infinite loop."

A stack-consumption vulnerability was found in libqpdf in QPDF 6.0.0, which allows attackers to cause a denial of service via a crafted file, related to the QPDFTokenizer::resolveLiteral function in QPDFTokenizer.cc after two consecutive calls to QPDFObjectHandle::parseInternal, aka an "infinite loop."

Last updated 25 August 2025

Last updated 25 August 2025

Last updated 25 August 2025