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ReDoS

A regular expression denial of service (ReDoS) is an algorithmic complexity attack that produces a denial-of-service by providing a regular expression (regex) and/or an input that takes a long time to evaluate. The attack exploits the fact that many regular expression implementations have super-linear worst-case complexity; on certain regex-input pairs…

Mitigation, Description & Examples

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Overview

Description

Examples

Mitigation

Advanced semantic analysis

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Map overview Semantic statistics

ReDoS

Nodes41
Edges40
Triples31
Avg. degree1.95
Density0.04878
Components1

How this topic connects Entity context

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ReDoS

Top relations

related to External links · 18
ReDoS → Archived, CVE-2009-3275, CVE-2009-3276, CVE-2009-3277, DataVault, DoS, EntLib, Examples, JavaScript, NASD CORE, NET Terelik, ReDoSAchim Hoffman, Regular, Retrieved, Richard, Smith, Some, Wayback Machine
related to Linear-time (finite automata) implementation · 8
ReDoS → Boostboost, Google, POSIX, RE2, Standard Library, This, Using, While
related to Mitigation · 5
ReDoS → After CloudFlare's, PCRE ReDoS, RE2, Rust, WAF

Important terminology Word statistics

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Important terminology

regular expression input regex time expressions backtracking vulnerable match also service attack exponential possible denial compile-time runtime may problematic displaystyle

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
ReDoSrelated to External linksExamples0.60section
ReDoSrelated to External linksDataVault0.60section
ReDoSrelated to External linksCVE-2009-32770.60section
ReDoSrelated to External linksEntLib0.60section
ReDoSrelated to External linksCVE-2009-32750.60section
ReDoSrelated to External linksNASD CORE0.60section
ReDoSrelated to External linksNET Terelik0.60section
ReDoSrelated to External linksCVE-2009-32760.60section
ReDoSrelated to External linksSome0.60section
ReDoSrelated to External linksReDoSAchim Hoffman0.60section
ReDoSrelated to External linksDoS0.60section
ReDoSrelated to External linksJavaScript0.60section

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    Min side: 3
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