Fallos del tipo CWE-122

3190 resultados

Estouro de heap

É quando o código escreve dados além dos limites de um buffer alocado no heap (memória dinâmica), sobrescrevendo dados de outras estruturas adjacentes. Esse estouro pode corromper metadados do heap, variáveis vizinhas ou objetos do programa, permitindo execução de código arbitrário ou negação de serviço.

Ejemplo

Um servidor web recebe uma string de tamanho arbitrário e a copia para um buffer de 256 bytes sem validar o comprimento (ex: strcpy em C). Se o atacante enviar 500 bytes, o restante escreve além da zona alocada, corrompendo estruturas próximas e potencialmente ganhando controle do fluxo.

Cómo mitigar

Use funções seguras (strncpy, strlcpy, snprintf em C) que respeitam limites de tamanho; valide e sanitize entrada do usuário antes de copiar; ative proteções do SO (ASLR, DEP/NX); use linguagens de memória segura quando possível; aplique verificações de limites em loops de cópia.

CVE-2022-43601HIGHMultiple code execution vulnerabilities exist in the IFFOutput::close() functionality of OpenImageIO Project OpenImageIO v2.4.4.2. A specialEPSS 1.7%CVE-2021-24025—Due to incorrect string size calculations inside the preg_quote function, a large input string passed to the function can trigger an integerEPSS 1.7%CVE-2018-19093HIGHAn issue has been found in libIEC61850 v1.3. It is a SEGV in ControlObjectClient_setCommandTerminationHandler in client/client_control.c. NOEPSS 1.7%CVE-2024-43592HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.7%CVE-2024-43593HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.7%CVE-2020-15800—A vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (All versions < V5.2.5), SCALANCE X-200IRT sEPSS 1.7%CVE-2024-37334HIGHMicrosoft OLE DB Driver for SQL Server Remote Code Execution VulnerabilityEPSS 1.6%CVE-2024-21368HIGHMicrosoft WDAC OLE DB provider for SQL Server Remote Code Execution VulnerabilityEPSS 1.6%CVE-2024-21359HIGHMicrosoft WDAC OLE DB provider for SQL Server Remote Code Execution VulnerabilityEPSS 1.6%CVE-2024-21361HIGHMicrosoft WDAC OLE DB provider for SQL Server Remote Code Execution VulnerabilityEPSS 1.6%CVE-2024-21349HIGHMicrosoft ActiveX Data Objects Remote Code Execution VulnerabilityEPSS 1.6%CVE-2024-21367HIGHMicrosoft WDAC OLE DB provider for SQL Server Remote Code Execution VulnerabilityEPSS 1.6%CVE-2022-2125HIGHHeap-based Buffer Overflow in vim/vimEPSS 1.6%CVE-2025-20260CRITICALClamAV PDF Scanning Buffer Overflow VulnerabilityEPSS 1.6%CVE-2023-37329HIGHGStreamer SRT File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 1.6%CVE-2023-21727HIGHRemote Procedure Call Runtime Remote Code Execution VulnerabilityEPSS 1.6%CVE-2023-24928HIGHMicrosoft PostScript and PCL6 Class Printer Driver Remote Code Execution VulnerabilityEPSS 1.6%CVE-2023-24926HIGHMicrosoft PostScript and PCL6 Class Printer Driver Remote Code Execution VulnerabilityEPSS 1.6%CVE-2026-28780CRITICALApache HTTP Server: buffer overflow in mod_proxy_ajp via ajp_msg_check_header()EPSS 1.6%CVE-2024-38130HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.6%