Fallos del tipo CWE-119

3506 resultados

Corrupção de memória genérica

Fraqueza genérica que descreve quando software escreve dados fora dos limites esperados de um buffer ou estrutura de memória, sobrescrevendo dados adjacentes. Permite ao atacante corromper dados críticos, executar código arbitrário ou derrubar a aplicação.

Ejemplo

Um programa C que copia uma string do usuário para um array fixo sem validar comprimento: strcpy(buffer, user_input) em um buffer de 64 bytes, quando o input tem 200 caracteres. Os dados transbordados sobrescrevem variáveis, ponteiros ou endereços de retorno na pilha.

Cómo mitigar

Use funções seguras de cópia (strncpy, strlcpy, memcpy com tamanho validado), implemente validação de entrada e comprimento antes de qualquer operação de escrita em buffer, e ative proteções de compilador como stack canaries e ASLR. Em linguagens modernas (Rust, Go), o gerenciamento automático de memória elimina essa classe de bugs.

CVE-2021-1433HIGHCisco IOS XE SD-WAN Software vDaemon Buffer Overflow VulnerabilityEPSS 2.3%CVE-2017-6791—A vulnerability in the Trust Verification Service (TVS) of Cisco Unified Communications Manager could allow an unauthenticated, remote attacEPSS 2.3%CVE-2017-12260—A vulnerability in the implementation of Session Initiation Protocol (SIP) functionality in Cisco Small Business SPA50x, SPA51x, and SPA52x EPSS 2.3%CVE-2017-12259—A vulnerability in the implementation of Session Initiation Protocol (SIP) functionality in Cisco Small Business SPA51x Series IP Phones couEPSS 2.3%CVE-2017-12270—A vulnerability in the gRPC code of Cisco IOS XR Software for Cisco Network Convergence System (NCS) 5500 Series Routers could allow an unauEPSS 2.3%CVE-2018-0132—A vulnerability in the forwarding information base (FIB) code of Cisco IOS XR Software could allow an unauthenticated, remote attacker to caEPSS 2.3%CVE-2017-12293—A vulnerability in Cisco WebEx Meetings Server could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.EPSS 2.3%CVE-2019-11926—Insufficient boundary checks when processing M_SOFx markers from JPEG headers in the GD extension could allow access to out-of-bounds memoryEPSS 2.3%CVE-2017-9633HIGHAn Improper Restriction of Operations within the Bounds of a Memory Buffer issue was discovered in the Continental AG Infineon S-Gold 2 (PMBEPSS 2.2%CVE-2023-3036HIGHOut of Bounds Slice index in cfnts leads to remote panicEPSS 2.2%CVE-2021-22709—A CWE-119:Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists in Interactive Graphical SCADA SystemEPSS 2.2%CVE-2021-22710—A CWE-119:Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists in Interactive Graphical SCADA SystemEPSS 2.2%CVE-2022-26776CRITICALThis issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.4, macOS Big Sur 11.6.6. An attacker may be able to EPSS 2.2%CVE-2018-8872—In Schneider Electric Triconex Tricon MP model 3008 firmware versions 10.0-10.4, system calls read directly from memory addresses within theEPSS 2.2%CVE-2025-8168HIGHD-Link DIR-513 formSetWanPPPoE websAspInit buffer overflowEPSS 2.2%CVE-2025-8169HIGHD-Link DIR-513 HTTP POST Request formSetWanPPTPpath formSetWanPPTPcallback buffer overflowEPSS 2.2%CVE-2021-34874HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. User interaction EPSS 2.2%CVE-2020-27874HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Tencent WeChat 7.0.18. User interaction isEPSS 2.2%CVE-2019-17320—NetSarang XFTP Client 6.0149 and earlier version contains a buffer overflow vulnerability caused by improper boundary checks when copying fiEPSS 2.2%CVE-2020-3451MEDIUMCisco Small Business RV340 Series Routers Command Injection and Remote Code Execution VulnerabilitiesEPSS 2.2%