Timing-Based Side-Channel Flaw in PKCS#1v1.5 RSA Encryption Padding Mode Could Lead to Decryption

CVE-2024-2467

Summary

A timing-based side-channel flaw exists in the perl-Crypt-OpenSSL-RSA package, which could be sufficient to recover plaintext across a network in a Bleichenbacher-style attack. To achieve successful decryption, an attacker would have to be able to send a large number of trial messages. The vulnerability affects the legacy PKCS#1v1.5 RSA encryption padding mode.

References