Falhas do tipo CWE-770

2.215 resultados

Alocação de recursos sem limite (negação de serviço por esgotamento)

A aplicação aloca recursos (memória, conexões, arquivos, threads) a pedido de um usuário sem impor limites, permitindo que um atacante esgote todos os recursos disponíveis e derrube o serviço. É basicamente deixar a porta aberta para qualquer um encher a caixa d'água até transbordar.

Exemplo

Um servidor web que cria uma nova thread para cada requisição HTTP recebida, sem limite. Um atacante envia milhares de requisições simultâneas e esgota o pool de threads, tornando o servidor inresponsivo para usuários legítimos — é negação de serviço puro.

Como mitigar

Implemente limites rigorosos: rate limiting (requisições por IP/usuário), quotas de recursos, pool de threads/conexões com tamanho máximo, timeout em operações, e monitoramento de consumo. Valide tamanhos de entrada e rejeite alocações que excedam os limites configurados.

CVE-2025-50334HIGHAn issue in Technitium DNS Server v.13.5 allows a remote attacker to cause a denial of service via the rate-limiting componentEPSS 1.1%CVE-2022-21822HIGHNVIDIA FLARE contains a vulnerability in the admin interface, where an un-authorized attacker can cause Allocation of Resources Without LimiEPSS 1.1%CVE-2025-21518MEDIUMVulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.40 aEPSS 1.1%CVE-2026-75050HIGHIn JetBrains YouTrack before 2026.1.13901, 2026.2.17950 doS attack was possible via crafted type parametersEPSS 1.1%CVE-2026-27601HIGHUnderscore.js has unlimited recursion in _.flatten and _.isEqual, potential for DoS attackEPSS 1.1%CVE-2025-21505MEDIUMVulnerability in the MySQL Server product of Oracle MySQL (component: Server: Components Services). Supported versions that are affected arEPSS 1.1%CVE-2025-21503MEDIUMVulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.40 and prior, 8EPSS 1.1%CVE-2023-28104HIGHsilverstripe/graphql Denial of Service vulnerabilityEPSS 1.1%CVE-2023-30551HIGHRekor's compressed archives can result in OOM conditionsEPSS 1.1%CVE-2025-4432MEDIUMRing: some aes functions may panic when overflow checking is enabled in ringEPSS 1.0%CVE-2023-30455HIGHAn issue was discovered in ebankIT before 7. A Denial-of-Service attack is possible through the GET parameter EStatementsIds located on the EPSS 1.0%CVE-2024-52804HIGHTornado has HTTP cookie parsing DoS vulnerabilityEPSS 1.0%CVE-2021-32036MEDIUMDenial of Service and Data Integrity vulnerability in features commandEPSS 1.0%CVE-2021-32848HIGHOctobox ReDoS vulnerabilityEPSS 1.0%CVE-2021-21000MEDIUMWAGO: PFC200 Denial of Service due to the number of connections to the runtimeEPSS 1.0%CVE-2026-85321HIGHActive Directory Federation Services (AD FS) Denial of Service VulnerabilityEPSS 1.0%CVE-2022-39226MEDIUMDiscourse user profile location and website fields were not sufficiently length-limitedEPSS 1.0%CVE-2026-58389HIGHApache Thrift: Rust binary protocol non-strict path missing string size limitEPSS 1.0%CVE-2026-45112MEDIUMApache Thrift: Unbounded Read Leading to Denial of ServiceEPSS 1.0%CVE-2026-55968HIGHApache Thrift: Node.js quadratic-time DoS in server receive transportsEPSS 1.0%