Source: libcrypto++ Version: 8.4.0-1 Severity: important Tags: security upstream Forwarded: https://github.com/weidai11/cryptopp/issues/1059 X-Debbugs-Cc: car...@debian.org, Debian Security Team <t...@security.debian.org>
Hi, The following vulnerability was published for libcrypto++. CVE-2021-40530[0]: | 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. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2021-40530 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40530 [1] https://github.com/weidai11/cryptopp/issues/1059 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
