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-2026-8631CRITICALHP Linux Imaging and Printing Software – Potential Escalation of Privilege and Arbitrary Code ExecutionEPSS 1.8%CVE-2022-41639CRITICALA heap based buffer overflow vulnerability exists in tile decoding code of TIFF image parser in OpenImageIO master-branch-9aeece7a and v2.3.EPSS 1.8%CVE-2022-41838CRITICALA code execution vulnerability exists in the DDS scanline parsing functionality of OpenImageIO Project OpenImageIO v2.4.4.2. A specially-craEPSS 1.8%CVE-2022-43598HIGHMultiple memory corruption vulnerabilities exist in the IFFOutput alignment padding functionality of OpenImageIO Project OpenImageIO v2.4.4.EPSS 1.8%CVE-2024-26179HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.8%CVE-2024-26200HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.8%CVE-2024-26205HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.8%CVE-2024-30077HIGHWindows OLE Remote Code Execution VulnerabilityEPSS 1.8%CVE-2021-44000—A vulnerability has been identified in JT2Go (All versions < V13.2.0.7), Solid Edge SE2021 (All versions < SE2021MP9), Solid Edge SE2022 (AlEPSS 1.8%CVE-2021-4019HIGHHeap-based Buffer Overflow in vim/vimEPSS 1.8%CVE-2024-21795CRITICALA heap-based buffer overflow vulnerability exists in the .egi parsing functionality of The Biosig Project libbiosig 2.5.0 and Master Branch EPSS 1.8%CVE-2024-21373HIGHSQL Server Native Client OLE DB Provider Remote Code Execution VulnerabilityEPSS 1.8%CVE-2024-21333HIGHSQL Server Native Client OLE DB Provider Remote Code Execution VulnerabilityEPSS 1.8%CVE-2024-21335HIGHSQL Server Native Client OLE DB Provider Remote Code Execution VulnerabilityEPSS 1.8%CVE-2024-21415HIGHSQL Server Native Client OLE DB Provider Remote Code Execution VulnerabilityEPSS 1.8%CVE-2021-3973HIGHHeap-based Buffer Overflow in vim/vimEPSS 1.8%CVE-2023-36402HIGHMicrosoft WDAC OLE DB provider for SQL Server Remote Code Execution VulnerabilityEPSS 1.8%CVE-2023-27882CRITICALA heap-based buffer overflow vulnerability exists in the HTTP Server form boundary functionality of Weston Embedded uC-HTTP v3.01.01. A specEPSS 1.8%CVE-2020-5138—A Heap Overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS) on the firewall SSLVPEPSS 1.8%CVE-2024-21365HIGHMicrosoft WDAC OLE DB provider for SQL Server Remote Code Execution VulnerabilityEPSS 1.8%