Falhas do tipo CWE-122

3.188 resultados

Estouro de heap

Ocorre quando código escreve mais dados do que o espaço alocado em uma região de memória dinâmica (heap), sobrescrevendo dados adjacentes. Um atacante pode explorar isso para corromper estruturas de dados críticas, contornar proteções de segurança ou executar código arbitrário.

Exemplo

Um servidor web aloca 256 bytes para armazenar um nome de usuário, mas copia 512 bytes de uma requisição sem validação. Os 256 bytes extras sobrescrevem ponteiros ou metadados do heap, permitindo execução de código ou negação de serviço.

Como mitigar

Use funções seguras que respeitam limites (strcpy_s, memcpy com tamanho verificado em runtime). Validar e limitar o tamanho de entrada antes de copiar. Ativar proteções como ASLR, stack canaries e ferramentas de sanitização (AddressSanitizer) em desenvolvimento.

CVE-2024-28943HIGHMicrosoft ODBC Driver for SQL Server Remote Code Execution VulnerabilityEPSS 2.4%CVE-2024-29048HIGHMicrosoft OLE DB Driver for SQL Server Remote Code Execution VulnerabilityEPSS 2.4%CVE-2024-29044HIGHMicrosoft OLE DB Driver for SQL Server Remote Code Execution VulnerabilityEPSS 2.4%CVE-2024-28927HIGHMicrosoft OLE DB Driver for SQL Server Remote Code Execution VulnerabilityEPSS 2.4%CVE-2024-29047HIGHMicrosoft OLE DB Driver for SQL Server Remote Code Execution VulnerabilityEPSS 2.4%CVE-2024-29046HIGHMicrosoft OLE DB Driver for SQL Server Remote Code Execution VulnerabilityEPSS 2.4%CVE-2024-28940HIGHMicrosoft OLE DB Driver for SQL Server Remote Code Execution VulnerabilityEPSS 2.4%CVE-2024-28914HIGHMicrosoft OLE DB Driver for SQL Server Remote Code Execution VulnerabilityEPSS 2.4%CVE-2021-33023CRITICALAdvantech WebAccessEPSS 2.3%CVE-2021-31439HIGHThis vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Synology DiskStation Manager. AuEPSS 2.3%CVE-2024-28937HIGHMicrosoft ODBC Driver for SQL Server Remote Code Execution VulnerabilityEPSS 2.3%CVE-2021-3625CRITICALBuffer overflow in Zephyr USB DFU DNLOADEPSS 2.3%CVE-2025-62454HIGHWindows Cloud Files Mini Filter Driver Elevation of Privilege VulnerabilityEPSS 2.3%CVE-2023-27585HIGHPJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.13 and prior afEPSS 2.3%CVE-2019-5019HIGHA heap-based overflow vulnerability exists in the PowerPoint document conversion function of Rainbow PDF Office Server Document Converter V7EPSS 2.3%CVE-2024-34459HIGHAn issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. Formatting error messages with xmllint --htmlout cEPSS 2.3%CVE-2024-28913HIGHMicrosoft OLE DB Driver for SQL Server Remote Code Execution VulnerabilityEPSS 2.3%CVE-2023-50229HIGHBlueZ Phone Book Access Profile Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 2.3%CVE-2019-5048HIGHA specifically crafted PDF file can lead to a heap corruption when opened in NitroPDF 12.12.1.522. With careful memory manipulation, this caEPSS 2.3%CVE-2019-5046HIGHA specifically crafted jpeg2000 file embedded in a PDF file can lead to a heap corruption when opening a PDF document in NitroPDF 12.12.1.52EPSS 2.3%