Fallos del tipo CWE-190

1664 resultados

Estouro ou Envolvimento de Inteiro

Ocorre quando uma operação aritmética produz um resultado que excede a capacidade máxima (ou mínima) do tipo de dado inteiro, causando um envolvimento (wraparound) silencioso para um valor inesperado. O perigo está em decisões lógicas baseadas nesse valor corrompido — validações de tamanho, cálculos de alocação de memória ou verificações de limites falham silenciosamente.

Ejemplo

Um aplicativo valida que um tamanho de upload é menor que 2GB comparando `size < 2147483648`. Um atacante fornece um valor de 2147483648 bytes em um inteiro de 32 bits com sinal; o valor sofre wraparound para -2147483648, passa na validação, e a alocação subsequente falha ou aloca memória insuficiente, levando a corrupção de heap.

Cómo mitigar

Use verificações explícitas antes de operações: validar se a adição de dois números não vai ultrapassar o limite antes de somar, preferir tipos sem sinal quando o contexto permite valores positivos apenas, ou usar bibliotecas/linguagens com aritmética segura que lançam exceções em overflow (como Python ou linguagens modernas com verificação de bounds).

CVE-2017-17409—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Bitdefender Internet Security 2018. UserEPSS 3.9%CVE-2025-24985HIGHWindows Fast FAT File System Driver Remote Code Execution VulnerabilityEPSS 3.8%KEVCVE-2025-46817HIGHLua library commands may lead to integer overflow and potential RCEEPSS 3.8%CVE-2021-46143HIGHIn doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.EPSS 3.8%CVE-2023-36478HIGHHTTP/2 HPACK integer overflow and buffer allocationEPSS 3.8%CVE-2022-0968HIGHThe microweber application allows large characters to insert in the input field "fist & last name" which can allow attackers to cause a Denial of Service (DoS) via a crafted HTTP request. in microweber/microweber in microweber/microweberEPSS 3.7%CVE-2020-6094CRITICALAn exploitable code execution vulnerability exists in the TIFF fillinraster function of the igcore19d.dll library of Accusoft ImageGear 19.4EPSS 3.7%CVE-2021-41099HIGHInteger overflow issue with strings in RedisEPSS 3.6%CVE-2021-29478HIGHVulnerability in the COPY command for large intsetsEPSS 3.6%CVE-2019-5059HIGHAn exploitable code execution vulnerability exists in the XPM image rendering functionality of SDL2_image 2.0.4. A specially crafted XPM imaEPSS 3.5%CVE-2021-30663HIGHAn integer overflow was addressed with improved input validation. This issue is fixed in iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3EPSS 3.5%KEVCVE-2022-24795MEDIUMBuffer Overflow and Integer Overflow in yajl-rubyEPSS 3.5%CVE-2019-3863HIGHA flaw was found in libssh2 before 1.8.1 creating a vulnerability on the SSH client side. A server could send a multiple keyboard interactivEPSS 3.4%CVE-2022-22823CRITICALbuild_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.EPSS 3.4%CVE-2022-22824CRITICALdefineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.EPSS 3.4%CVE-2019-5085CRITICALAn exploitable code execution vulnerability exists in the DICOM packet-parsing functionality of LEADTOOLS libltdic.so, version 20.0.2019.3.1EPSS 3.4%CVE-2017-20005CRITICALNGINX before 1.13.6 has a buffer overflow for years that exceed four digits, as demonstrated by a file with a modification date in 1969 thatEPSS 3.3%CVE-2023-24871HIGHWindows Bluetooth Service Remote Code Execution VulnerabilityEPSS 3.2%CVE-2013-2596HIGHInteger overflow in the fb_mmap function in drivers/video/fbmem.c in the Linux kernel before 3.8.9, as used in a certain Motorola build of AEPSS 3.2%KEVCVE-2021-3520—There's a flaw in lz4. An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, EPSS 3.2%