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.
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "8.0.2-3~14.04.1", "binary_name": "libqpdf-dev" }, { "binary_version": "8.0.2-3~14.04.1", "binary_name": "libqpdf21" }, { "binary_version": "8.0.2-3~14.04.1", "binary_name": "libqpdf21-dbgsym" }, { "binary_version": "8.0.2-3~14.04.1", "binary_name": "qpdf" }, { "binary_version": "8.0.2-3~14.04.1", "binary_name": "qpdf-dbgsym" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "8.0.2-3~16.04.1", "binary_name": "libqpdf-dev" }, { "binary_version": "8.0.2-3~16.04.1", "binary_name": "libqpdf21" }, { "binary_version": "8.0.2-3~16.04.1", "binary_name": "libqpdf21-dbgsym" }, { "binary_version": "8.0.2-3~16.04.1", "binary_name": "qpdf" }, { "binary_version": "8.0.2-3~16.04.1", "binary_name": "qpdf-dbgsym" } ] }