Weaknesses of type CWE-789

251 results

Alocação de memória descontrolada

Ocorre quando a aplicação aloca memória de forma proporcional a entrada do usuário sem validar limites, permitindo que um atacante force a alocação de quantidades excessivas de RAM. Isso causa consumo de memória em massa (DoS) ou até crash da aplicação.

Example

Um servidor web que redimensiona um buffer baseado no header Content-Length enviado pelo cliente sem checá-lo contra um máximo razoável. Um atacante envia Content-Length: 999999999, forçando a alocação de gigabytes de memória instantaneamente e derrubando o serviço.

How to mitigate

Defina e enforce limites máximos de memória por operação — valide tamanhos de entrada contra thresholds conhecidos antes de alocar. Use mecanismos do SO (ulimit, cgroups) para restringir memória por processo como última linha de defesa.

CVE-2025-8696HIGHDoS attack against the Stork UI from an unauthenticated userEPSS 0.4%CVE-2026-42582HIGHNetty: HTTP/3 QPACK literal unbounded allocationEPSS 0.4%CVE-2026-48502HIGHMessagePack-CSharp: Denial of service vulnerabilities can swamp the CPU or crash the process with stack and heap overflowsEPSS 0.4%CVE-2025-62600HIGHeprosima Fast DDS affected by Out-of-Memory in readBinaryPropertySeq via Manipulated DATA Submessage when DDS Security is enabledEPSS 0.4%CVE-2021-34867HIGHThis vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.1.3-49160. An attacker muEPSS 0.4%CVE-2026-66273HIGHApache Qpid Proton-J: Type size/count handling can lead to excessive allocation pre-authenticationEPSS 0.4%CVE-2026-47667HIGHCImg Library: Uncontrolled Memory Allocation and Memory Leak in `_load_analyze()` via Crafted NIfTI/Analyze HeaderEPSS 0.4%CVE-2024-41761MEDIUMIBM Db2 denial of serviceEPSS 0.4%CVE-2021-34868HIGHThis vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.1.3-49160. An attacker muEPSS 0.4%CVE-2026-69219HIGHRabbitMQ Java client ValueReader: Oversized LongString/bytes length triggers OOM via unchecked allocationEPSS 0.4%CVE-2026-55379HIGHPillow BdfFontFile`: `Image.new()` called without `_decompression_bomb_check()` — bomb protection bypass via font loadingEPSS 0.4%CVE-2026-54890HIGHBEAM VM crash via integer underflow in binary_to_term BIT_BINARY_EXT decodingEPSS 0.4%CVE-2025-12983LOWMemory Allocation with Excessive Size Value in GitLabEPSS 0.4%CVE-2021-34869HIGHThis vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.1.3-49160. An attacker muEPSS 0.4%CVE-2026-54060HIGHPillow: `FontFile.compile()`: `Image.new()` called without `_decompression_bomb_check()`EPSS 0.4%CVE-2025-66199MEDIUMTLS 1.3 CompressedCertificate excessive memory allocationEPSS 0.4%CVE-2026-55380HIGHPillow GdImageFile decompression bomb protection bypassEPSS 0.4%CVE-2026-46603HIGHExcessive memory allocation during VP8L decoding in golang.org/x/imageEPSS 0.4%CVE-2026-91752HIGHGNU libextractor before 1.15 Stack Overflow via OLE2EPSS 0.4%CVE-2026-44630HIGHApache IoTDB: RPC service denial of service via unchecked Thrift string lengthEPSS 0.4%