Fallos del tipo CWE-476

2329 resultados

Desreferência de ponteiro nulo autenticada remota

A aplicação tenta acessar um objeto ou endereço de memória que não foi inicializado ou foi definido como nulo, sem verificar essa condição antes. Um atacante autenticado consegue provocar esse acesso inválido enviando dados malformados ou inesperados, causando crash ou comportamento indefinido.

Ejemplo

Um endpoint autenticado de API recebe um ID de usuário, faz uma busca no banco que retorna nulo (usuário não existe) e tenta acessar diretamente campos desse objeto nulo sem validação — resultando em erro 500 ou travamento da aplicação.

Cómo mitigar

Sempre verificar se um objeto é nulo antes de usá-lo; usar análise estática (linters, SAST) para detectar acessos potenciais a nulos; validar e tratar casos onde dados esperados podem estar ausentes, mesmo que o usuário esteja autenticado.

CVE-2016-9600—JasPer before version 2.0.10 is vulnerable to a null pointer dereference was found in the decoded creation of JPEG 2000 image files. A speciEPSS 1.5%CVE-2023-6356MEDIUMKernel: null pointer dereference in nvmet_tcp_build_iovecEPSS 1.5%CVE-2019-14872MEDIUMThe _dtoa_r function of the newlib libc library, prior to version 3.3.0, performs multiple memory allocations without checking their return EPSS 1.5%CVE-2022-41999HIGHA denial of service vulnerability exists in the DDS native tile reading functionality of OpenImageIO Project OpenImageIO v2.3.19.0 and v2.4.EPSS 1.4%CVE-2022-3109HIGHAn issue was discovered in the FFmpeg package, where vp3_decode_frame in libavcodec/vp3.c lacks check of the return value of av_malloc() andEPSS 1.4%CVE-2021-29241HIGHCODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).EPSS 1.4%CVE-2020-26213MEDIUMDenial of Service in telerEPSS 1.4%CVE-2021-42733MEDIUMAdobe Bridge NULL Pointer Dereference could lead to Application denial-of-serviceEPSS 1.4%CVE-2022-2085—A NULL pointer dereference vulnerability was found in Ghostscript, which occurs when it tries to render a large number of bits in memory. WhEPSS 1.4%CVE-2024-35960CRITICALnet/mlx5: Properly link new fs rules into the treeEPSS 1.4%CVE-2024-8495HIGHA null pointer dereference in Ivanti Connect Secure before version 22.7R2.1 and Ivanti Policy Secure before version 22.7R1.1 allows a remoteEPSS 1.4%CVE-2026-21243HIGHWindows Lightweight Directory Access Protocol (LDAP) Denial of Service VulnerabilityEPSS 1.4%CVE-2020-3517HIGHCisco FXOS and NX-OS Software Cisco Fabric Services Denial of Service VulnerabilityEPSS 1.4%CVE-2021-40761MEDIUMAdobe After Effects NULL Pointer Dereference Application Denial of ServiceEPSS 1.4%CVE-2021-43750MEDIUMAdobe Premiere Rush NULL Pointer Dereference Local Denial-of-ServiceEPSS 1.4%CVE-2021-43748MEDIUMAdobe Premiere Rush NULL Pointer Dereference Local Denial-of-ServiceEPSS 1.4%CVE-2021-40756MEDIUMAdobe After Effects NULL Pointer Dereference Application Denial of ServiceEPSS 1.4%CVE-2021-43749MEDIUMAdobe Premiere Rush NULL Pointer Dereference Local Denial-of-ServiceEPSS 1.4%CVE-2022-2208HIGHNULL Pointer Dereference in vim/vimEPSS 1.4%CVE-2019-13542—3S-Smart Software Solutions GmbH CODESYS V3 OPC UA Server, all versions 3.5.11.0 to 3.5.15.0, allows an attacker to send crafted requests frEPSS 1.4%