CVE-2021-40530

The ElGamal implementation in Crypto++ through 8.5 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP.
Configurations

Configuration 1 (hide)

cpe:2.3:a:cryptopp:crypto\+\+:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

Information

Published : 2021-09-06 12:15

Updated : 2021-10-18 04:58


NVD link : CVE-2021-40530

Mitre link : CVE-2021-40530


JSON object : View

CWE
CWE-327

Use of a Broken or Risky Cryptographic Algorithm

Products Affected

cryptopp

  • crypto\+\+

fedoraproject

  • fedora