Fallos del tipo CWE-416

5038 resultados

Uso após liberação de memória

Ocorre quando o código tenta acessar uma área de memória que já foi liberada (deallocated). O programa continua usando um ponteiro que aponta para um endereço inválido, causando leitura/escrita em memória não controlada. Isso pode levar a crash, corrupção de dados ou execução arbitrária de código.

Ejemplo

Um navegador aloca memória para um objeto DOM, depois o remove da página e libera a memória. Se um script JavaScript ainda tentar acessar esse objeto deletado, o navegador tenta ler/escrever em um endereço que agora contém outro dado, causando comportamento impredizível ou exploração por atacante.

Cómo mitigar

Use linguagens com garbage collection (Java, Python, C#) ou práticas rigorosas: null os ponteiros após free(), use smart pointers (C++), evite compartilhamento de referências sem sincronização, faça testes de memória com ferramentas como Valgrind ou AddressSanitizer.

CVE-2022-28271HIGHAdobe Photoshop PDF File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 3.3%CVE-2018-17623—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.1.5096. User interactioEPSS 3.3%CVE-2018-17624—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.1.0.5096. User interactioEPSS 3.3%CVE-2018-17615—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.1.5096. User interactioEPSS 3.3%CVE-2018-17618—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.1.5096. User interactioEPSS 3.3%CVE-2024-38147HIGHMicrosoft DWM Core Library Elevation of Privilege VulnerabilityEPSS 3.3%CVE-2023-38224HIGHZDI-CAN-21122: Adobe Acrobat Reader DC Annotation Use-After-Free Remote Code Execution VulnerabilityEPSS 3.2%CVE-2024-41831HIGHZDI-CAN-24569: Adobe Acrobat Reader DC AcroForm Use-After-Free Remote Code Execution VulnerabilityEPSS 3.2%CVE-2022-34237MEDIUMAdobe Acrobat Reader DC Font Parsing Use-After-Free Information Disclosure VulnerabilityEPSS 3.2%CVE-2023-1531HIGHUse after free in ANGLE in Google Chrome prior to 111.0.5563.110 allowed a remote attacker to potentially exploit heap corruption via a crafEPSS 3.2%CVE-2017-10948—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 8.2.1.6871. User interactioEPSS 3.2%CVE-2023-38225HIGHZDI-CAN-21118: Adobe Acrobat Reader DC AcroForm Use-After-Free Remote Code Execution VulnerabilityEPSS 3.2%CVE-2024-43582HIGHRemote Desktop Protocol Server Remote Code Execution VulnerabilityEPSS 3.2%CVE-2023-26422HIGHZDI-CAN-20176: Adobe Acrobat Reader DC AcroForm deleteItemAt Use-After-Free Remote Code Execution VulnerabilityEPSS 3.1%CVE-2023-26423HIGHZDI-CAN-20160: Adobe Acrobat Reader DC AcroForm insertItemAt Use-After-Free Remote Code Execution VulnerabilityEPSS 3.1%CVE-2019-6768HIGHThis vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.4.1.16828. User interactiEPSS 3.1%CVE-2019-5145HIGHAn exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit PDF Reader, version 9.7.0.29435. A specially crafted PDEPSS 3.1%CVE-2021-34835HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893. User interaEPSS 3.1%CVE-2021-34834HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893. User interaEPSS 3.1%CVE-2021-42380HIGHA use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in theEPSS 3.1%