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

• https://nvd.nist.gov/vuln/detail/CVE-2024-2467
• toddr/Crypt-OpenSSL-RSA#42
• https://access.redhat.com/security/cve/CVE-2024-2467
• https://bugzilla.redhat.com/show_bug.cgi?id=2269567
• https://people.redhat.com/~hkario/marvin