Fallos del tipo CWE-401

664 resultados

Vazamento de memória por falta de liberação

Ocorre quando o código aloca memória (heap, buffer ou outros recursos) mas nunca a libera adequadamente, mesmo após seu uso terminar. A memória fica presa e indisponível, consumindo recursos até o programa encerrar ou falhar. É especialmente crítico em serviços de longa execução (daemons, servidores) onde o vazamento se acumula.

Ejemplo

Um servidor web que cria um objeto para processar cada requisição, mas esquece de desalocá-lo no final do tratamento. Após milhares de requisições, a memória disponível se esgota e o serviço cai. Ou código em C que chama malloc() mas nunca free(), deixando a memória órfã.

Cómo mitigar

Use garbage collection ou linguagens gerenciadas quando possível; em C/C++, aplique padrões como RAII (Resource Acquisition Is Initialization) ou smart pointers; faça code review focado em pares alloc/free; use ferramentas como Valgrind ou AddressSanitizer para detectar vazamentos antes da produção.

CVE-2019-5023MEDIUMAn exploitable vulnerability exists in the grsecurity PaX patch for the function read_kmem, in PaX from version pax-linux-4.9.8-test1 to 4.9EPSS 0.7%CVE-2024-27508HIGHAtheme 7.2.12 contains a memory leak vulnerability in /atheme/src/crypto-benchmark/main.c.EPSS 0.7%CVE-2024-8376HIGHMemory leakEPSS 0.7%CVE-2026-48006HIGHNetty's Lack of Lifecycle Cleanup Leads to Pooled ByteBuf Leak in RedisArrayAggregatorEPSS 0.7%CVE-2025-20133HIGHCisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Authentication Targeted Denial of Service VulnerabilityEPSS 0.7%CVE-2025-0241HIGHMemory corruption when using JavaScript Text SegmentationEPSS 0.7%CVE-2023-30637HIGHBaidu braft 1.1.2 has a memory leak related to use of the new operator in example/atomic/atomic_server. NOTE: installations with brpc-0.14.0EPSS 0.7%CVE-2022-23578MEDIUMMemory leak in TensorflowEPSS 0.7%CVE-2023-33718HIGHmp4v2 v2.1.3 was discovered to contain a memory leak via MP4File::ReadString() at mp4file_io.cppEPSS 0.7%CVE-2023-5954MEDIUMVault Requests Triggering Policy Checks May Lead To Unbounded Memory ConsumptionEPSS 0.7%CVE-2022-1515—A memory leak was discovered in matio 1.5.21 and earlier in Mat_VarReadNextInfo5() in mat5.c via a crafted file. This issue can potentially EPSS 0.7%CVE-2022-22204MEDIUMJunos OS: MX Series and SRX Series: When receiving a specific SIP packets stale call table entries are created which eventually leads to a DoS for all SIP trafficEPSS 0.7%CVE-2022-4132MEDIUMMemory leak on tls connectionsEPSS 0.7%CVE-2024-7884HIGHMemory leak when calling a canister method via `ic_cdk::call`EPSS 0.7%CVE-2025-20225MEDIUMA vulnerability in the Internet Key Exchange Version 2 (IKEv2) feature of Cisco IOS Software, IOS XE Software, Secure Firewall Adaptive SecuEPSS 0.7%CVE-2025-20224MEDIUMA vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software anEPSS 0.7%CVE-2023-5349MEDIUMDraw while calling getdrawinfo()EPSS 0.7%CVE-2026-1605HIGHIn Eclipse Jetty, versions 12.0.0-12.0.31 and 12.1.0-12.0.5, class GzipHandler exposes a vulnerability when a compressed HTTP request, with EPSS 0.7%CVE-2024-25450HIGHimlib2 v1.9.1 was discovered to mishandle memory allocation in the function init_imlib_fonts().EPSS 0.7%CVE-2022-41832HIGHBIG-IP SIP vulnerability CVE-2022-41832EPSS 0.7%