Falhas do tipo CWE-190

1.660 resultados

Estouro ou Envolvimento de Inteiro

Ocorre quando uma operação aritmética produz um valor que excede o limite máximo (ou mínimo) que o tipo de dado inteiro pode armazenar, causando o valor envolver-se para o lado oposto ou comportamento inesperado. Isso permite que atacantes contornem validações, aloquem memória inadequada, ou causem travamentos ao explorar essa descontinuidade.

Exemplo

Um servidor de upload limita arquivos a 2 GB verificando se size < 2147483648 (INT_MAX). Um atacante envia size=2147483648, que em inteiro de 32 bits assinado vira -2147483648. A validação passa, mas durante a alocação de buffer o sistema trata como valor negativo ou inesperado, causando falha ou bypass de proteção.

Como mitigar

Use tipos inteiros sem sinal (unsigned) ou de maior capacidade (64 bits) quando apropriado; valide entradas contra limites explícitos *antes* de operações aritméticas; utilize funções de verificação de overflow fornecidas pela linguagem ou biblioteca (ex: __builtin_add_overflow em C, SafeInt em .NET); evite conversões implícitas entre tipos.

CVE-2023-52339MEDIUMIn libebml before 1.4.5, an integer overflow in MemIOCallback.cpp can occur when reading or writing. It may result in buffer overflows.EPSS 1.1%CVE-2020-27769—In ImageMagick versions before 7.0.9-0, there are outside the range of representable values of type 'float' at MagickCore/quantize.c.EPSS 1.1%CVE-2020-27761—WritePALMImage() in /coders/palm.c used size_t casts in several areas of a calculation which could lead to values outside the range of repreEPSS 1.1%CVE-2022-21801HIGHA denial of service vulnerability exists in the netserver recv_command functionality of reolink RLC-410W v3.0.0.136_20121102. A specially-crEPSS 1.1%CVE-2020-27757—A floating point math calculation in ScaleAnyToQuantum() of /MagickCore/quantum-private.h could lead to undefined behavior in the form of a EPSS 1.1%CVE-2020-25675—In the CropImage() and CropImageToTiles() routines of MagickCore/transform.c, rounding calculations performed on unconstrained pixel offsetsEPSS 1.1%CVE-2022-1699CRITICALUncontrolled Resource Consumption in causefx/organizrEPSS 1.1%CVE-2024-22211LOWFreeRDP integer Overflow leading to Heap OverflowEPSS 1.1%CVE-2022-40983HIGHAn integer overflow vulnerability exists in the QML QtScript Reflect API of Qt Project Qt 6.3.2. A specially-crafted javascript code can triEPSS 1.1%CVE-2026-5121HIGHLibarchive: libarchive: arbitrary code execution via integer overflow in iso9660 image processingEPSS 1.1%CVE-2024-43566HIGHMicrosoft Edge (Chromium-based) Remote Code Execution VulnerabilityEPSS 1.1%CVE-2024-1916CRITICALInteger Overflow or Wraparound vulnerability in Mitsubishi Electric Corporation MELSEC-Q Series and MELSEC-L Series CPU modules allows a remEPSS 1.1%CVE-2024-1917CRITICALInteger Overflow or Wraparound vulnerability in Mitsubishi Electric Corporation MELSEC-Q Series and MELSEC-L Series CPU modules allows a remEPSS 1.1%CVE-2025-46819MEDIUMRedis is vulnerable to DoS via specially crafted LUA scriptsEPSS 1.1%CVE-2023-32307HIGHheap-over-flow and integer-overflow in sofia-sipEPSS 1.1%CVE-2026-69329HIGHBranchCache Denial of Service VulnerabilityEPSS 1.1%CVE-2024-0803CRITICALInteger Overflow or Wraparound vulnerability in Mitsubishi Electric Corporation MELSEC-Q Series and MELSEC-L Series CPU modules allows a remEPSS 1.0%CVE-2022-1718HIGHThe trudesk application allows large characters to insert in the input field "Full Name" on the signup field which can allow attackers to cause a Denial of Service (DoS) via a crafted HTTP request in polonel/trudeskEPSS 1.0%CVE-2026-27784HIGHNGINX ngx_http_mp4_module vulnerabilityEPSS 1.0%CVE-2022-1754HIGHInteger Overflow or Wraparound in polonel/trudeskEPSS 1.0%