Weaknesses of type CWE-120

3,246 results

Estouro de buffer clássico

A aplicação copia dados para um buffer sem validar o tamanho, permitindo que um atacante sobrescreva memória adjacente, incluindo endereços de retorno ou ponteiros de função. Isso resulta na execução de código arbitrário com os privilégios da aplicação.

Example

Um programa lê uma entrada do usuário com gets() ou strcpy() sem limitar quantos bytes podem ser copiados. Um atacante fornece uma entrada maior que o buffer, sobrescrevendo a pilha e injetando código malicioso que será executado quando a função retornar.

How to mitigate

Use funções seguras que validam limites (strncpy, snprintf, fgets) e compile com proteções de pilha ativadas (-fstack-protector-all no GCC). Além disso, implemente validação de entrada no tamanho esperado e considere linguagens com gerenciamento automático de memória para novos projetos.

CVE-2023-42799HIGHBuffer overflow due to use of `strcpy` in `parseUrlAddrFromRtspUrlString`EPSS 1.9%CVE-2023-42800HIGHBuffer overflow due to use of `strcpy` in `performRtspHandshake`EPSS 1.9%CVE-2022-32941CRITICALThe issue was addressed with improved bounds checks. This issue is fixed in iOS 15.7.1 and iPadOS 15.7.1, macOS Ventura 13, iOS 16.1 and iPaEPSS 1.9%CVE-2022-41018HIGHSeveral stack-based buffer overflow vulnerabilities exist in the DetranCLI command parsing functionality of Siretta QUARTZ-GOLD G5.0.1.5-210EPSS 1.9%CVE-2022-41017HIGHSeveral stack-based buffer overflow vulnerabilities exist in the DetranCLI command parsing functionality of Siretta QUARTZ-GOLD G5.0.1.5-210EPSS 1.9%CVE-2021-28180MEDIUMASUS BMC's firmware: buffer overflow - Audit log configuration settingEPSS 1.9%CVE-2021-28181MEDIUMASUS BMC's firmware: buffer overflow - Remote video configuration settingEPSS 1.9%CVE-2021-28195MEDIUMASUS BMC's firmware: buffer overflow - Radius configuration functionEPSS 1.9%CVE-2021-28202MEDIUMASUS BMC's firmware: buffer overflow - Service configuration-2 functionEPSS 1.9%CVE-2021-28189MEDIUMASUS BMC's firmware: buffer overflow - SMTP configuration functionEPSS 1.9%CVE-2021-28185MEDIUMASUS BMC's firmware: buffer overflow - ActiveX configuration-1 acquisitionEPSS 1.9%CVE-2021-28197MEDIUMASUS BMC's firmware: buffer overflow - Active Directory configuration functionEPSS 1.9%CVE-2021-28194MEDIUMASUS BMC's firmware: buffer overflow - Remote image configuration settingEPSS 1.9%CVE-2021-28192MEDIUMASUS BMC's firmware: buffer overflow - Remote video storage functionEPSS 1.9%CVE-2021-28200MEDIUMASUS BMC's firmware: buffer overflow - CD media configuration functionEPSS 1.9%CVE-2021-28193MEDIUMASUS BMC's firmware: buffer overflow - SMTP configuration functionEPSS 1.9%CVE-2021-28188MEDIUMASUS BMC's firmware: buffer overflow - Modify user’s information functionEPSS 1.9%CVE-2021-28201MEDIUMASUS BMC's firmware: buffer overflow - Service configuration-1 functionEPSS 1.9%CVE-2021-28186MEDIUMASUS BMC's firmware: buffer overflow - ActiveX configuration-2 acquisitionEPSS 1.9%CVE-2021-28184MEDIUMASUS BMC's firmware: buffer overflow - Active Directory configuration functionEPSS 1.9%