Falhas do tipo CWE-787

5.841 resultados

Escrita fora dos limites de memória

Ocorre quando um programa escreve dados em um endereço de memória fora da área alocada para um buffer ou variável. O código não valida o tamanho ou índice antes de gravar, permitindo sobrescrita de dados adjacentes, corrupção de estruturas críticas ou execução de código arbitrário.

Exemplo

Um formulário web que copia dados do usuário para um buffer de 256 bytes sem validar o tamanho da entrada. Se o atacante envia 500 bytes, a escrita transborda e sobrescreve a pilha, podendo hijackear o endereço de retorno da função.

Como mitigar

Use funções seguras de cópia (strncpy, strlcpy ao invés de strcpy; memcpy com tamanho máximo explícito) e sempre valide comprimento e índices antes de escrever. Em linguagens modernas, prefira estruturas com bounds-checking automático (arrays em Java, Rust, etc).

CVE-2021-35989HIGHAdobe Bridge PDF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 3.7%CVE-2021-21066HIGHAdobe Bridge Font Parsing Out-Of-Bounds Write Arbitrary Code Execution VulnerabilityEPSS 3.7%CVE-2021-21065HIGHAdobe Bridge Font Parsing Out-Of-Bounds Write Arbitrary Code Execution VulnerabilityEPSS 3.7%CVE-2021-28642HIGHAdobe Acrobat Pro DC Out-of-Bounds Write Arbitrary Code Execution VulnerabilityEPSS 3.7%CVE-2020-27860HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 10.0.1.35811. User interactioEPSS 3.7%CVE-2021-30665HIGHA memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 7.4.1, iOS 14.5.1 and iPadOS 14.5.1, EPSS 3.7%KEVCVE-2023-3596HIGHRockwell Automation Allen-Bradley ControlLogix Communication Modules vulnerable to Denial of Service EPSS 3.7%CVE-2021-21044HIGHAcrobat Reader DC Out-Of-Bounds Write Vulnerability Could Lead To Arbitrary Code ExecutionEPSS 3.7%CVE-2019-5132CRITICALAn exploitable out-of-bounds write vulnerability exists in the igcore19d.dll GEM Raster parser of the Accusoft ImageGear 19.3.0 library. A sEPSS 3.7%CVE-2019-5187CRITICALAn exploitable out-of-bounds write vulnerability exists in the TIFreadstripdata function of the igcore19d.dll library of Accusoft ImageGear EPSS 3.7%CVE-2019-5076CRITICALAn exploitable out-of-bounds write vulnerability exists in the igcore19d.dll PNG header-parser of the Accusoft ImageGear 19.3.0 library. A sEPSS 3.7%CVE-2017-17410—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Bitdefender Internet Security 2018. UserEPSS 3.7%CVE-2020-26995—A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions < V13.1.0). Affected applicatiEPSS 3.6%CVE-2019-5083CRITICALAn exploitable out-of-bounds write vulnerability exists in the igcore19d.dll TIFdecodethunderscan function of Accusoft ImageGear 19.3.0 librEPSS 3.6%CVE-2018-20252—In WinRAR versions prior to and including 5.60, there is an out-of-bounds write vulnerability during parsing of crafted ACE and RAR archive EPSS 3.6%CVE-2020-28383—A vulnerability has been identified in JT2Go (All versions < V13.1.0.1), Solid Edge SE2020 (All Versions < SE2020MP12), Solid Edge SE2021 (AEPSS 3.6%CVE-2021-39820HIGHAdobe InDesign Memory Corruption Vulnerability Could Lead to Arbitrary Code ExecutionEPSS 3.6%CVE-2006-20001—Apache HTTP Server: mod_dav out of bounds read, or write of zero byteEPSS 3.6%CVE-2017-2615MEDIUMQuick emulator (QEMU) built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue. It could occur whEPSS 3.6%CVE-2017-2620MEDIUMQuick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The isEPSS 3.6%