![]() your server is well below its red-line QPS throughput capacity), Lucene will use multiple concurrent threads to find the top overall hits for each query.”Īpache Lucene 8.4.1 can be downloaded here. ![]() “If you pass an Executor and your CPUs are idle enough (i.e. CVE(s): CVE-2018-8026 Affected product(s) and affected version(s): The following products, running on all supported platforms, are affected: IBM InfoSphere Information Server: version 11.7 IBM InfoSphere Information Server on Cloud: version 11.7 Refer to the following reference URLs for remediation and. PMC member and committer for the Apache Lucene project Michael McCandless explains this in detail in a blog that states: “Lucene’s IndexSearcher class, responsible for executing incoming queries to find their top matching hits from your index, accepts an optional Executor (e.g. A vulnerability in Apache Solr (lucene) was addressed by IBM InfoSphere Information Server. The engine itself is incredibly robust, and while the engine is commonly used in a one thread per query manner when initiating a search, the engine can actually execute a single query concurrently using multiple threads. Known as an inverted index it works in a similar manner as the index of a book. ![]() It does so because instead of searching text or content directly, it instead searches an index which has been created in relation to that content. ![]() Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.One of the main reason that Apache Lucene is considered in such high regard is that it can return search responses quickly. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. The only scenario where it might be less appropriate would be when the index size grows too big. It also enables search based on various search fields and most importantly the search and index process can happen simultaneously. We are making clients aware of relevant vulnerabilities as we become aware of them. Apache Lucene is a perfect text search implementation where the heap space usage needs to be kept to its minimal. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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