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CVE-2020-26939

MEDIUM

5.3

Descricao

In Legion of the Bouncy Castle BC before 1.61 and BC-FJA before 1.0.1.2, attackers can obtain sensitive information about a private exponent because of Observable Differences in Behavior to Error Inputs. This occurs in org.bouncycastle.crypto.encodings.OAEPEncoding. Sending invalid ciphertext that decrypts to a short payload in the OAEP Decoder could result in the throwing of an early exception, potentially leaking some information about the private exponent of the RSA private key performing the encryption.

Detalhes CVE

Pontuacao CVSS v3.15.3

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado11/2/2020

Ultima modificacao7/17/2025

Fontenvd

Avistamentos honeypot0

Produtos afetados

bouncycastle:fips_java_apibouncycastle:legion-of-the-bouncy-castle

Fraquezas (CWE)

CWE-203

Referencias

https://github.com/bcgit/bc-java/wiki/CVE-2020-26939(cve@mitre.org)

https://lists.apache.org/thread.html/r8c36ba34e80e05eecb1f80071cc834d705616f315b634ec0c7d8f42e%40%3Cissues.solr.apache.org%3E(cve@mitre.org)

https://github.com/bcgit/bc-java/wiki/CVE-2020-26939(af854a3a-2127-422b-91ae-364da2661108)

https://lists.apache.org/thread.html/r8c36ba34e80e05eecb1f80071cc834d705616f315b634ec0c7d8f42e%40%3Cissues.solr.apache.org%3E(af854a3a-2127-422b-91ae-364da2661108)

Correlacoes IOC

Sem correlacoes registradas

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