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-2016-9580LOWAn integer overflow vulnerability was found in tiftoimage function in openjpeg 2.1.2, resulting in heap buffer overflow.EPSS 2.0%CVE-2022-24942CRITICALHeap-based buffer overflow in MicriumOS HTTP Server allows potential remote code executionEPSS 2.0%CVE-2021-21942CRITICALAn out-of-bounds write vulnerability exists in the TIFF YCbCr image parser functionality of Accusoft ImageGear 19.10. A specially-crafted fiEPSS 2.0%CVE-2021-21962CRITICALA heap-based buffer overflow vulnerability exists in the OTA Update u-download functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.EPSS 2.0%CVE-2020-27814—A heap-buffer overflow was found in the way openjpeg2 handled certain PNG format files. An attacker could use this flaw to cause an applicatEPSS 2.0%CVE-2023-0667MEDIUMWireshark MSMMS parsing buffer overflowEPSS 2.0%CVE-2021-46606HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. UEPSS 2.0%CVE-2021-34871HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. User interaction EPSS 2.0%CVE-2019-5125HIGHAn exploitable heap overflow vulnerability exists in the JPEG2000 parsing functionality of LEADTOOLS 20. A specially crafted J2K image file EPSS 2.0%CVE-2023-36423HIGHMicrosoft Remote Registry Service Remote Code Execution VulnerabilityEPSS 2.0%CVE-2023-33129MEDIUMMicrosoft SharePoint Server Denial of Service VulnerabilityEPSS 2.0%CVE-2016-9581LOWAn infinite loop vulnerability in tiftoimage that results in heap buffer overflow in convert_32s_C1P1 was found in openjpeg 2.1.2.EPSS 2.0%CVE-2024-26210HIGHMicrosoft WDAC OLE DB provider for SQL Server Remote Code Execution VulnerabilityEPSS 2.0%CVE-2022-43599HIGHMultiple code execution vulnerabilities exist in the IFFOutput::close() functionality of OpenImageIO Project OpenImageIO v2.4.4.2. A specialEPSS 2.0%CVE-2024-0040HIGHIn setParameter of MtpPacket.cpp, there is a possible out of bounds read due to a heap buffer overflow. This could lead to remote informatioEPSS 2.0%CVE-2026-62783HIGHWindows Remote Access Connection Manager Elevation of Privilege VulnerabilityEPSS 2.0%CVE-2026-62713HIGHWindows Cloud Files Mini Filter Driver Elevation of Privilege VulnerabilityEPSS 1.9%CVE-2018-6344HIGHA heap corruption in WhatsApp can be caused by a malformed RTP packet being sent after a call is established. The vulnerability can be used EPSS 1.9%CVE-2018-10606—WECON LeviStudio Versions 1.8.29 and 1.8.44 have multiple heap-based buffer overflow vulnerabilities that can be exploited when the applicatEPSS 1.9%CVE-2024-26159HIGHMicrosoft ODBC Driver Remote Code Execution VulnerabilityEPSS 1.9%