CVE-2024-2467: Perl-crypt-openssl-rsa: side-channel attack in pkcs#1 v1.5 padding mode (marvin attack)
First published: Thu Mar 14 2024(Updated: )
A timing based side-channel exists in the perl-Crypt-OpenSSL-RSA package which could be sufficient to recover a 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 for decryption. The vulnerability affects the legacy PKCS#1v1.5 RSA encryption padding mode. References: <a href="https://people.redhat.com/~hkario/marvin/">https://people.redhat.com/~hkario/marvin/</a> <a href="https://github.com/toddr/Crypt-OpenSSL-RSA/issues/42">https://github.com/toddr/Crypt-OpenSSL-RSA/issues/42</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Crypt-OpenSSL-RSA |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-2467?
CVE-2024-2467 is classified as a critical vulnerability due to the potential for plaintext recovery through a timing-based side-channel attack.
How can I fix CVE-2024-2467?
To fix CVE-2024-2467, update the perl-Crypt-OpenSSL-RSA package to the latest version that mitigates this side-channel vulnerability.
Who is affected by CVE-2024-2467?
CVE-2024-2467 affects users of the perl-Crypt-OpenSSL-RSA package, especially those handling sensitive data over a network.
What type of attack does CVE-2024-2467 enable?
CVE-2024-2467 enables a Bleichenbacher style attack, allowing attackers to recover plaintext through a series of trial messages.
Is there a workaround for CVE-2024-2467?
Currently, the recommended action for CVE-2024-2467 is to apply available updates, as no specific workarounds are documented.
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