CVE-2018-11256

An issue was discovered in PoDoFo 0.9.5. The function PdfDocument::Append() in PdfDocument.cpp in PoDoFo 0.9.5 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted PDF document.

The podofo package has been updated to fix several security issues.

These are all security issues fixed in the libpodofo-devel-0.9.7-2.2 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the libpodofo-0_10-devel-0.10.5-1.1 package on the GA media of openSUSE Tumbleweed.

This update for podofo fixes the following issues:

These security issues were fixed:

• CVE-2017-6845: The PoDoFo::PdfColor::operator function allowed remote attackers to cause a denial of service (NULL pointer dereference) via a crafted file (bsc#1027779).
• CVE-2018-5308: Properly validate memcpy arguments in the PdfMemoryOutputStream::Write function to prevent remote attackers from causing a denial-of-service or possibly have unspecified other impact via a crafted pdf file (bsc#1075772)
• CVE-2018-5295: Prevent integer overflow in the PdfXRefStreamParserObject::ParseStream function that allowed remote attackers to cause a denial-of-service via a crafted pdf file (bsc#1075026).
• CVE-2017-6845: The PoDoFo::PdfColor::operator function allowed remote attackers to cause a denial of service (NULL pointer dereference) via a crafted file (bsc#1027779).
• CVE-2018-5309: Prevent integer overflow in the PdfObjectStreamParserObject::ReadObjectsFromStream function that allowed remote attackers to cause a denial-of-service via a crafted pdf file (bsc#1075322).
• CVE-2018-5296: Prevent uncontrolled memory allocation in the PdfParser::ReadXRefSubsection function that allowed remote attackers to cause a denial-of-service via a crafted pdf file (bsc#1075021).
• CVE-2017-7381: Prevent NULL pointer dereference that allowed remote attackers to cause a denial of service via a crafted PDF document (bsc#1032020).
• CVE-2017-7382: Prevent NULL pointer dereference that allowed remote attackers to cause a denial of service via a crafted PDF document (bsc#1032021).
• CVE-2017-7383: Prevent NULL pointer dereference that allowed remote attackers to cause a denial of service via a crafted PDF document (bsc#1032022).
• CVE-2018-11256: Prevent NULL pointer dereference that allowed remote attackers to cause a denial of service via a crafted PDF document (bsc#1096889).
• CVE-2018-5783: Prevent uncontrolled memory allocation in the PoDoFo::PdfVecObjects::Reserve function that allowed remote attackers to cause a denial of service via a crafted pdf file (bsc#1076962).

These non-security issues were fixed:

• Prevent regression caused by the fix for CVE-2017-8054.
• Prevent NULL dereferences when 'Kids' array is missing (bsc#1096890)
• Added to detect cycles and recursions in XRef tables