Fallos del tipo CWE-190

1664 resultados

Estouro ou Envolvimento de Inteiro

Ocorre quando uma operação aritmética produz um resultado que excede a capacidade máxima (ou mínima) do tipo de dado inteiro, causando um envolvimento (wraparound) silencioso para um valor inesperado. O perigo está em decisões lógicas baseadas nesse valor corrompido — validações de tamanho, cálculos de alocação de memória ou verificações de limites falham silenciosamente.

Ejemplo

Um aplicativo valida que um tamanho de upload é menor que 2GB comparando `size < 2147483648`. Um atacante fornece um valor de 2147483648 bytes em um inteiro de 32 bits com sinal; o valor sofre wraparound para -2147483648, passa na validação, e a alocação subsequente falha ou aloca memória insuficiente, levando a corrupção de heap.

Cómo mitigar

Use verificações explícitas antes de operações: validar se a adição de dois números não vai ultrapassar o limite antes de somar, preferir tipos sem sinal quando o contexto permite valores positivos apenas, ou usar bibliotecas/linguagens com aritmética segura que lançam exceções em overflow (como Python ou linguagens modernas com verificação de bounds).

CVE-2021-32027—A flaw was found in postgresql in versions before 13.3, before 12.7, before 11.12, before 10.17 and before 9.6.22. While modifying certain SEPSS 2.0%CVE-2023-29369MEDIUMRemote Procedure Call Runtime Denial of Service VulnerabilityEPSS 2.0%CVE-2021-36058MEDIUMXMP Toolkit SDK Integer Overflow Vulnerability Could Result In Application Denial Of ServiceEPSS 2.0%CVE-2019-5089HIGHAn exploitable memory corruption vulnerability exists in Investintech Able2Extract Professional 4.0.7 x64. A specially crafted JPEG file canEPSS 2.0%CVE-2024-21444HIGHMicrosoft WDAC OLE DB provider for SQL Server Remote Code Execution VulnerabilityEPSS 1.9%CVE-2024-21441HIGHMicrosoft WDAC OLE DB provider for SQL Server Remote Code Execution VulnerabilityEPSS 1.9%CVE-2023-0179—A buffer overflow vulnerability was found in the Netfilter subsystem in the Linux Kernel. This issue could allow the leakage of both stack aEPSS 1.9%CVE-2018-1124HIGHprocps-ng before version 3.3.15 is vulnerable to multiple integer overflows leading to a heap corruption in file2strvec function. This allowEPSS 1.9%CVE-2021-20304—A flaw was found in OpenEXR's hufDecode functionality. This flaw allows an attacker who can pass a crafted file to be processed by OpenEXR, EPSS 1.9%CVE-2023-36401HIGHMicrosoft Remote Registry Service Remote Code Execution VulnerabilityEPSS 1.9%CVE-2020-35523—An integer overflow flaw was found in libtiff that exists in the tif_getimage.c file. This flaw allows an attacker to inject and execute arbEPSS 1.9%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 1.9%CVE-2016-9583MEDIUMAn out-of-bounds heap read vulnerability was found in the jpc_pi_nextpcrl() function of jasper before 2.0.6 when processing crafted input.EPSS 1.9%CVE-2025-49683HIGHMicrosoft Virtual Hard Disk Remote Code Execution VulnerabilityEPSS 1.9%CVE-2018-11574CRITICALImproper input validation together with an integer overflow in the EAP-TLS protocol implementation in PPPD may cause a crash, information diEPSS 1.9%CVE-2023-35381HIGHWindows Fax Service Remote Code Execution VulnerabilityEPSS 1.9%CVE-2013-7353MEDIUMInteger overflow in the png_set_unknown_chunks function in libpng/pngset.c in libpng before 1.5.14beta08 allows context-dependent attackers EPSS 1.9%CVE-2019-9133HIGHKMPlayer Subtitles parser Heap Overflow VulnerabilityEPSS 1.9%CVE-2026-7838HIGHUltraVNC viewer heap buffer overflow via integer overflow in RFB connection-failure reason lengthEPSS 1.9%CVE-2021-27435HIGHARM mbed Integer Overflow or WraparoundEPSS 1.9%