Falhas do tipo CWE-119

3.263 resultados

Corrupção de Memória Genérica

É uma categoria abrangente que descreve qualquer acesso indevido à memória — escrever fora dos limites de um buffer, ler dados não inicializados, ou manipular ponteiros inválidos. O risco é grave: permite execução de código arbitrário, travamento da aplicação ou exposição de dados sensíveis.

Exemplo

Um programa em C copia dados do usuário para um array sem validar o tamanho (strcpy em vez de strncpy). Um atacante envia uma string maior que o buffer, sobrescrevendo dados adjacentes ou até o endereço de retorno da função, permitindo injetar código malicioso.

Como mitigar

Use funções seguras (strncpy, snprintf, memmove com limites explícitos), valide e sanitize toda entrada antes de copiar, ative canários de pilha e ASLR no SO, e aplique sanitizadores (ASAN, UBSAN) durante desenvolvimento e testes. Em linguagens seguras (Rust, Python) o problema é praticamente eliminado.

CVE-2021-20325—Missing fixes for CVE-2021-40438 and CVE-2021-26691 in the versions of httpd, as shipped in Red Hat Enterprise Linux 8.5.0, causes a securitEPSS 1.6%CVE-2024-1112HIGHBuffer Overflow Vulnerability in Resource HackerEPSS 1.6%CVE-2019-6541—A memory corruption vulnerability has been identified in WECON LeviStudioU version 1.8.56 and prior, which may allow arbitrary code executioEPSS 1.6%CVE-2021-4157—An out of memory bounds write flaw (1 or 2 bytes of memory) in the Linux kernel NFS subsystem was found in the way users use mirroring (replEPSS 1.6%CVE-2024-22373HIGHAn out-of-bounds write vulnerability exists in the JPEG2000Codec::DecodeByStreamsCommon functionality of Mathieu Malaterre Grassroot DICOM 3EPSS 1.6%CVE-2022-3550MEDIUMX.org Server xkb.c _GetCountedString buffer overflowEPSS 1.6%CVE-2018-0209—A vulnerability in the Simple Network Management Protocol (SNMP) subsystem communication channel through the Cisco 550X Series Stackable ManEPSS 1.6%CVE-2025-10432CRITICALTenda AC1206 HTTP Request AdvSetMacMtuWa check_param_changed stack-based overflowEPSS 1.6%CVE-2022-27624CRITICALA vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the packet decryption functionEPSS 1.6%CVE-2022-27625CRITICALA vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the message processing functioEPSS 1.6%CVE-2020-35522—In LibTIFF, there is a memory malloc failure in tif_pixarlog.c. A crafted TIFF document can lead to an abort, resulting in a remote denial oEPSS 1.6%CVE-2025-6115HIGHD-Link DIR-619L form_macfilter stack-based overflowEPSS 1.6%CVE-2025-6114HIGHD-Link DIR-619L form_portforwarding stack-based overflowEPSS 1.6%CVE-2017-12267—A vulnerability in the Independent Computing Architecture (ICA) accelerator feature for the Cisco Wide Area Application Services (WAAS) coulEPSS 1.6%CVE-2021-46153—A vulnerability has been identified in Simcenter Femap V2020.2 (All versions), Simcenter Femap V2021.1 (All versions). Affected application EPSS 1.6%CVE-2020-10060HIGHUpdateHub Might Dereference An Uninitialized PointerEPSS 1.6%CVE-2021-31495HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop 16.6.3.84. User inEPSS 1.6%CVE-2019-8720HIGHA vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code eEPSS 1.6%KEVCVE-2025-34096CRITICALEasy File Sharing HTTP Server 7.2 Buffer Overflow via POST to /sendemail.ghpEPSS 1.6%CVE-2025-8168HIGHD-Link DIR-513 formSetWanPPPoE websAspInit buffer overflowEPSS 1.6%