Falhas do tipo CWE-190

1.956 resultados

Estouro ou Envolvimento de Inteiro

Ocorre quando uma operação aritmética produz um valor que excede o limite máximo (ou mínimo) que o tipo de dado inteiro pode armazenar, causando o valor envolver-se para o lado oposto ou comportamento inesperado. Isso permite que atacantes contornem validações, aloquem memória inadequada, ou causem travamentos ao explorar essa descontinuidade.

Exemplo

Um servidor de upload limita arquivos a 2 GB verificando se size < 2147483648 (INT_MAX). Um atacante envia size=2147483648, que em inteiro de 32 bits assinado vira -2147483648. A validação passa, mas durante a alocação de buffer o sistema trata como valor negativo ou inesperado, causando falha ou bypass de proteção.

Como mitigar

Use tipos inteiros sem sinal (unsigned) ou de maior capacidade (64 bits) quando apropriado; valide entradas contra limites explícitos *antes* de operações aritméticas; utilize funções de verificação de overflow fornecidas pela linguagem ou biblioteca (ex: __builtin_add_overflow em C, SafeInt em .NET); evite conversões implícitas entre tipos.

CVE-2024-43635HIGHWindows Telephony Service Remote Code Execution VulnerabilityEPSS 1.7%CVE-2024-45490CRITICALAn issue was discovered in libexpat before 2.6.3. xmlparse.c does not reject a negative length for XML_ParseBuffer.EPSS 1.7%CVE-2016-6328MEDIUMA vulnerability was found in libexif. An integer overflow when parsing the MNOTE entry data of the input file. This can cause Denial-of-ServEPSS 1.7%CVE-2024-37336HIGHSQL Server Native Client OLE DB Provider Remote Code Execution VulnerabilityEPSS 1.7%CVE-2021-27425HIGHCesanta Software Mongoose-OS Integer Overflow or WraparoundEPSS 1.7%CVE-2021-27427HIGHRIOT OS Integer Overflow or WraparoundEPSS 1.7%CVE-2018-1126MEDIUMprocps-ng before version 3.3.15 is vulnerable to an incorrect integer size in proc/alloc.* leading to truncation/integer overflow issues. ThEPSS 1.7%CVE-2022-47629CRITICALLibksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.EPSS 1.7%CVE-2020-3120HIGHCisco FXOS, IOS XR, and NX-OS Software Cisco Discovery Protocol Denial of Service VulnerabilityEPSS 1.6%CVE-2024-38128HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.6%CVE-2023-6478HIGHXorg-x11-server: out-of-bounds memory read in rrchangeoutputproperty and rrchangeproviderpropertyEPSS 1.6%CVE-2022-2831—A flaw was found in Blender 3.3.0. An interger overflow in source/blender/blendthumb/src/blendthumb_extract.cc may lead to program crash or EPSS 1.6%CVE-2024-37323HIGHSQL Server Native Client OLE DB Provider Remote Code Execution VulnerabilityEPSS 1.6%CVE-2022-32775CRITICALAn integer overflow vulnerability exists in the web interface /action/ipcamRecordPost functionality of Abode Systems, Inc. iota All-In-One SEPSS 1.6%CVE-2024-49085HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.6%CVE-2025-54957CRITICALAn issue was discovered in Dolby UDC 4.5 through 4.13. A crash of the DD+ decoder process can occur when a malformed DD+ bitstream is procesEPSS 1.6%CVE-2022-36125HIGHInteger overflow when reading corrupted .avro file in Avro Rust SDKEPSS 1.6%CVE-2024-4453HIGHGStreamer EXIF Metadata Parsing Integer Overflow Remote Code Execution VulnerabilityEPSS 1.6%CVE-2022-28331CRITICALApache Portable Runtime (APR): Windows out-of-bounds write in apr_socket_sendv functionEPSS 1.6%CVE-2021-27665HIGHexacqVision Server 32-bitEPSS 1.6%