Vulnerabilidades do Oracle Jd Edwards World Security

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CVEs publicadas que afetam Oracle Jd Edwards World Security: 4 registro(s), com versões afetadas e correções.
cpe:2.3:a:oracle:jd_edwards_world_security

CVE-2021-3711 Crítica · 9.8 CWE-120 24/08/2021

Estouro de buffer na decriptação SM2 do OpenSSL

Para decriptar dados cifrados com SM2, uma aplicação deve chamar a função de API EVP_PKEY_decrypt(). Normalmente, uma aplicação chama essa função duas vezes. Na primeira vez, na entrada, o parâmetro "out" pode ser NULL e, na saída, o parâmetro "outlen" é preenchido com o tamanho do buffer necessário para armazenar o texto simples decriptado. A aplicação pode então alocar um buffer de tamanho suficiente e chamar EVP_PKEY_decrypt() novamente, mas desta vez passando um valor não NULL para o parâmetro "out". Um erro na implementação do código de decriptação SM2 faz com que o cálculo do tamanho do buffer necessário para armazenar o texto simples retornado pela primeira chamada a EVP_PKEY_decrypt() possa ser menor do que o tamanho real exigido pela segunda chamada. Isso pode levar a um estouro de buffer quando EVP_PKEY_decrypt() é chamada pela aplicação uma segunda vez com um buffer pequeno demais. Um atacante malicioso capaz de apresentar conteúdo SM2 para decriptação a uma aplicação poderia fazer com que dados escolhidos pelo atacante estourem o buffer em até no máximo 62 bytes, alterando o conteúdo de outros dados armazenados após o buffer, possivelmente mudando o comportamento da aplicação ou causando travamento. A localização do buffer depende da aplicação, mas normalmente é alocada na heap. Corrigido no OpenSSL 1.1.1l (afetadas 1.1.1-1.1.1k).

CVE-2021-3450 Alta · 7.4 CWE-295 25/03/2021

CA certificate check bypass with X509_V_FLAG_X509_STRICT

The X509_V_FLAG_X509_STRICT flag enables additional security checks of the certificates present in a certificate chain. It is not set by default. Starting from OpenSSL version 1.1.1h a check to disallow certificates in the chain that have explicitly encoded elliptic curve parameters was added as an additional strict check. An error in the implementation of this check meant that the result of a previous check to confirm that certificates in the chain are valid CA certificates was overwritten. This effectively bypasses the check that non-CA certificates must not be able to issue other certificates. If a "purpose" has been configured then there is a subsequent opportunity for checks that the certificate is a valid CA. All of the named "purpose" values implemented in libcrypto perform this check. Therefore, where a purpose is set the certificate chain will still be rejected even when the strict flag has been used. A purpose is set by default in libssl client and server certificate verification routines, but it can be overridden or removed by an application. In order to be affected, an application must explicitly set the X509_V_FLAG_X509_STRICT verification flag and either not set a purpose for the certificate verification or, in the case of TLS client or server applications, override the default purpose. OpenSSL versions 1.1.1h and newer are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1h-1.1.1j).

CVE-2021-3449 Média · 5.9 CWE-476 25/03/2021

NULL pointer deref in signature_algorithms processing

An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).

CVE-2020-1967 Alta · 7.5 CWE-476 21/04/2020

Segmentation fault in SSL_check_chain

Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).