Reviewer: Tero Kivinen Review result: Has Issues I have reviewed this document as part of the security directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written primarily for the benefit of the security area directors. Document editors and WG chairs should treat these comments just like any other last call comments. In my previous review I listed lots of new possible security concerns that might apply for graphic libraries, and those were added to the security considerations section, but what was left out was the text I proposed to say that current graphics file format libraries have very important role in the security, as so many applications takes images from the untrusted sources and shows them on the screen, so writing graphics format libraries should require similar security sensitive programming methods than cryptographic libraries etc. I think adding text in the security considerations section warning stating something like this might be needed: As graphics file format libraries are used in so many places and used in ways where they often take inputs from unknown and perhaps unsafe source, and where there can be severe security issues both on clients (web browsers, email clients) and servers (for example when automatically converting uploaded images from one format to another format on servers), the implementations of the graphic file format libraries needs to be written in a way that considers security as one of the primary goals of the library, perhaps even before the speed of the decompression or the compression efficiency of the generated file. -- last-call mailing list last-call@xxxxxxxx https://www.ietf.org/mailman/listinfo/last-call