Fallos del tipo CWE-125
5104 resultadosLeitura fora dos limites do buffer
Ocorre quando o código tenta acessar dados além das fronteiras válidas de um buffer (array, string, estrutura), lendo memória que não deveria. O risco é expor informações sensíveis da memória adjacente ou causar crash da aplicação.
Ejemplo
Uma função que processa strings sem validar o tamanho da entrada pode ler bytes além do final da string alocada, vazando dados de memória ou causando segmentation fault. Exemplo: strcpy() copiando para buffer menor sem checagem.
Cómo mitigar
Use funções seguras com limite explícito (strlen com buffer_size, strncpy, snprintf), valide índices antes de acessar arrays, e ative verificações de limite em tempo de compilação ou execução (-ftrapv, ASAN, bounds checking).
CVE-2017-8872CRITICALThe htmlParseTryOrFinish function in HTMLparser.c in libxml2 2.9.4 allows attackers to cause a denial of service (buffer over-read) or inforEPSS 2.3%CVE-2020-36331—A flaw was found in libwebp in versions before 1.0.1. An out-of-bounds read was found in function ChunkAssignData. The highest threat from tEPSS 2.3%CVE-2019-5090CRITICALAn exploitable information disclosure vulnerability exists in the DICOM packet-parsing functionality of LEADTOOLS libltdic.so, version 20.0.EPSS 2.3%CVE-2023-0668MEDIUMWireshark IEEE-C37.118 parsing buffer overflowEPSS 2.3%CVE-2019-8260—UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC client RRE decoder code, caused by multiplication overflow. This attackEPSS 2.3%CVE-2021-45052LOWAdobe Bridge TIF File Parsing Out-Of-Bounds Read Information Disclosure VulnerabilityEPSS 2.3%CVE-2020-9739MEDIUMAdobe Media Encoder FLV File Parsing Out-Of-Bounds Read Information Disclosure VulnerabilityEPSS 2.2%CVE-2020-9744MEDIUMAdobe Media Encoder WMV File Parsing Out-Of-Bounds Read Information Disclosure VulnerabilityEPSS 2.2%CVE-2019-8261—UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC code inside client CoRRE decoder, caused by multiplication overflow. ThEPSS 2.2%CVE-2026-7482HIGHOllama heap out-of-bounds read in GGUF tensor parsing leaks server process memory to unauthenticated remote attackersEPSS 2.2%CVE-2024-8929MEDIUMLeak partial content of the heap through heap buffer over-read in mysqlndEPSS 2.2%CVE-2023-3036HIGHOut of Bounds Slice index in cfnts leads to remote panicEPSS 2.2%CVE-2018-25010—A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in ApplyFilter().EPSS 2.2%CVE-2020-36330—A flaw was found in libwebp in versions before 1.0.1. An out-of-bounds read was found in function ChunkVerifyAndAssign. The highest threat fEPSS 2.2%CVE-2020-9745MEDIUMAdobe Media Encoder PSD File Parsing Out-Of-Bounds Read Information Disclosure VulnerabilityEPSS 2.2%CVE-2018-10877HIGHLinux kernel ext4 filesystem is vulnerable to an out-of-bound access in the ext4_ext_drop_refs() function when operating on a crafted ext4 fEPSS 2.2%CVE-2017-9117MEDIUMIn LibTIFF 4.0.6 and possibly other versions, the program processes BMP images without verifying that biWidth and biHeight in the bitmap-infEPSS 2.2%CVE-2022-23193MEDIUMAdobe Illustrator Out-of-bounds Read could lead to Memory leakEPSS 2.2%CVE-2024-43565HIGHWindows Network Address Translation (NAT) Denial of Service VulnerabilityEPSS 2.2%CVE-2024-43562HIGHWindows Network Address Translation (NAT) Denial of Service VulnerabilityEPSS 2.2%