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.
Weakness
Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libcrypt-openssl-rsa-perl | Ubuntu | focal | * |
| Libcrypt-openssl-rsa-perl | Ubuntu | mantic | * |
| Libcrypt-openssl-rsa-perl | Ubuntu | oracular | * |
| Libcrypt-openssl-rsa-perl | Ubuntu | plucky | * |
| Libcrypt-openssl-rsa-perl | Ubuntu | trusty/esm | * |
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/462.html
- https://cwe.mitre.org/data/definitions/541.html
- https://cwe.mitre.org/data/definitions/580.html
References
- https://access.redhat.com/security/cve/CVE-2024-2467
- https://bugzilla.redhat.com/show_bug.cgi?id=2269567
- https://github.com/toddr/Crypt-OpenSSL-RSA/issues/42
- https://people.redhat.com/~hkario/marvin/
- https://access.redhat.com/security/cve/CVE-2024-2467
- https://bugzilla.redhat.com/show_bug.cgi?id=2269567
- https://github.com/toddr/Crypt-OpenSSL-RSA/issues/42
- https://people.redhat.com/~hkario/marvin/