Falhas do tipo CWE-770

1.846 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-2024-12379MEDIUMAllocation of Resources Without Limits or Throttling in GitLabEPSS 0.5%CVE-2021-47793MEDIUMTelegram Desktop 2.9.2 - Denial of Service (PoC)EPSS 0.5%CVE-2026-40036HIGHUnfurl < 2026.04 - Denial of Service via Unbounded zlib DecompressionEPSS 0.5%CVE-2022-22488MEDIUMIBM OpenBMC denial of serviceEPSS 0.5%CVE-2025-12571HIGHAllocation of Resources Without Limits or Throttling in GitLabEPSS 0.5%CVE-2026-93488HIGHIo.netty/netty-codec-http: netty: denial of service via unbounded concurrent spdy streamsEPSS 0.5%CVE-2024-45526MEDIUMAn issue was discovered in OPC Foundation OPCFoundation/UA-.NETStandard through 1.5.374.78. A remote attacker can send requests with invalidEPSS 0.5%CVE-2024-21539HIGHVersions of the package @eslint/plugin-kit before 0.2.3 are vulnerable to Regular Expression Denial of Service (ReDoS) due to improper inputEPSS 0.5%CVE-2026-22258HIGHSuricata DCERPC: unbounded fragment buffering leads to memory exhaustionEPSS 0.5%CVE-2026-59246MEDIUMZero-length HTTP/2 CONTINUATION frames bypass Mint's header-block byte-size cap and exhaust client memoryEPSS 0.5%CVE-2026-58229HIGHUnbounded HTTP/1 response-header and chunked-trailer accumulation in Mint causes memory-exhaustion DoSEPSS 0.5%CVE-2025-24341MEDIUMA vulnerability in the web application of ctrlX OS allows a remote authenticated (low-privileged) attacker to induce a Denial-of-Service (DoEPSS 0.5%CVE-2024-34703HIGHBotan Vulnerable to Denial of Service Due to Overly Large Elliptic Curve ParametersEPSS 0.5%CVE-2026-25762HIGHAdonisJS vulnerable to Denial of Service (DoS) via Unrestricted Memory Buffering in PartHandler during File Type DetectionEPSS 0.5%CVE-2020-25650—A flaw was found in the way the spice-vdagentd daemon handled file transfers from the host system to the virtual machine. Any unprivileged lEPSS 0.5%CVE-2026-56149MEDIUMAllocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of ServiceEPSS 0.5%CVE-2026-67317MEDIUMaxios 1.7.0 before 1.18.0 maxBodyLength Bypass via ReadableStreamEPSS 0.5%CVE-2023-51309MEDIUMA lack of rate limiting in the 'Email Settings' feature of PHPJabbers Car Park Booking System v3.0 allows attackers to send an excessive amoEPSS 0.5%CVE-2023-51310MEDIUMA lack of rate limiting in the 'Forgot Password', 'Email Settings' feature of PHPJabbers Car Park Booking System v3.0 allows attackers to seEPSS 0.5%CVE-2018-25108HIGHWAGO: Denial of service in 750-8xx controller due to uncontrolled resource consumptionEPSS 0.5%