Oxford disclaims any responsibility for the materials contained in any third party website referenced in this work. S.p.A.-Lavis TN Links to third party websites are provided by Oxford in good faith and for information only. Enquiries concerning reproduction outside the scope of the above should be sent to the Rights Department, Oxford University Press, at the address above You must not circulate this work in any other form and you must impose this same condition on any acquirer British Library Cataloguing in Publication Data Data available ISBN 978–0–19–969739–7 Printed in Italy by L.E.G.O. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, without the prior permission in writing of Oxford University Press, or as expressly permitted by law, by licence or under terms agreed with the appropriate reprographics rights organization. Patrick 2013 The moral rights of the author have been asserted Second Edition copyright 2001 Third Edition copyright 2005 Fourth Edition copyright 2009 Impression: 1 All rights reserved. Oxford is a registered trade mark of Oxford University Press in the UK and in certain other countries © Graham L. It furthers the University’s objective of excellence in research, scholarship, and education by publishing worldwide. This is only exploitable if the color_cache_bits value defines which size to use.1 Great Clarendon Street, Oxford, OX2 6DP, United Kingdom Oxford University Press is a department of the University of Oxford. The OOB write to the undersized array happens in ReplicateValue. When BuildHuffmanTable() attempts to fill the second-level tables it may write data out-of-bounds. libwebp allows codes that are up to 15-bit ( MAX_ALLOWED_CODE_LENGTH). The kTableSize array only takes into account sizes for 8-bit first-level table lookups but not second-level table lookups. The color_cache_bits value defines which size to use. An attacker can craft a special WebP lossless file that triggers the ReadHuffmanCodes() function to allocate the HuffmanCode buffer with a size that comes from an array of precomputed sizes: kTableSize. Electron is a framework which lets you write cross-platform desktop applications using JavaScript, HTML and CSS.Īffected versions of this package are vulnerable to Heap-based Buffer Overflow when the ReadHuffmanCodes() function is used.
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