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CVE-2020-26939

MEDIUM

5.3

Description

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.

Details CVE

Score CVSS v3.15.3

SeveriteMEDIUM

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie11/2/2020

Derniere modification7/17/2025

Sourcenvd

Observations honeypot0

Produits affectes

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

Faiblesses (CWE)

CWE-203

References

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)

Correlations IOC

Aucune correlation enregistree

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