Falhas do tipo CWE-190

1.660 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-2020-27768—In ImageMagick, there is an outside the range of representable values of type 'unsigned int' at MagickCore/quantum-private.h. This flaw affeEPSS 1.4%CVE-2023-40745MEDIUMLibtiff: integer overflow in tiffcp.cEPSS 1.4%CVE-2023-47212CRITICALA heap-based buffer overflow vulnerability exists in the comment functionality of stb _vorbis.c v1.22. A specially crafted .ogg file can leaEPSS 1.4%CVE-2022-32546—A vulnerability was found in ImageMagick, causing an outside the range of representable values of type 'unsigned long' at coders/pcl.c, whenEPSS 1.4%CVE-2023-38104HIGHGStreamer RealMedia File Parsing Integer Overflow Remote Code Execution VulnerabilityEPSS 1.4%CVE-2022-32545—A vulnerability was found in ImageMagick, causing an outside the range of representable values of type 'unsigned char' at coders/psd.c, whenEPSS 1.4%CVE-2020-13546HIGHIn SoftMaker Software GmbH SoftMaker Office TextMaker 2021 (revision 1014), a specially crafted document can cause the document parser to miEPSS 1.4%CVE-2025-54106HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.4%CVE-2024-45492HIGHAn issue was discovered in libexpat before 2.6.3. nextScaffoldPart in xmlparse.c can have an integer overflow for m_groupSize on 32-bit platEPSS 1.4%CVE-2021-22675—The affected product is vulnerable to integer overflow while parsing malformed over-the-air firmware update files, which may allow an attackEPSS 1.4%CVE-2023-28277MEDIUMWindows DNS Server Information Disclosure VulnerabilityEPSS 1.4%CVE-2025-50166MEDIUMWindows Distributed Transaction Coordinator (MSDTC) Information Disclosure VulnerabilityEPSS 1.4%CVE-2024-47606HIGHGHSL-2024-166: GStreamer Integer overflows in MP4/MOV demuxer and memory allocator that can lead to out-of-bounds writesEPSS 1.4%CVE-2023-40186MEDIUMIntegerOverflow leading to Out-Of-Bound Write Vulnerability in FreeRDPEPSS 1.4%CVE-2026-7828MEDIUMUltraVNC repeater integer overflow in win_log malloc leading to heap overflowEPSS 1.4%CVE-2024-21836HIGHA heap-based buffer overflow vulnerability exists in the GGUF library header.n_tensors functionality of llama.cpp Commit 18c2e17. A speciallEPSS 1.3%CVE-2024-23605HIGHA heap-based buffer overflow vulnerability exists in the GGUF library header.n_kv functionality of llama.cpp Commit 18c2e17. A specially craEPSS 1.3%CVE-2024-21825HIGHA heap-based buffer overflow vulnerability exists in the GGUF library GGUF_TYPE_ARRAY/GGUF_TYPE_STRING parsing functionality of llama.cpp CoEPSS 1.3%CVE-2024-23496HIGHA heap-based buffer overflow vulnerability exists in the GGUF library gguf_fread_str functionality of llama.cpp Commit 18c2e17. A specially EPSS 1.3%CVE-2022-29219HIGHInteger Overflow in LodestarEPSS 1.3%