Advisories » MGASA-2021-0468

Updated libcryptopp packages fix security vulnerability

Publication date: 06 Oct 2021
Modification date: 06 Oct 2021
Type: security
Affected Mageia releases : 8
CVE: CVE-2021-40530

Description

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.
(CVE-2021-40530)
                

References

• https://bugs.mageia.org/show_bug.cgi?id=29529
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/HGVBZ2TTRKCTYAZTRHTF6OBD4W37F5MT/
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40530

SRPMS

8/core

• libcryptopp-8.2.0-2.1.mga8