Total
1 CVE
CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
---|---|---|---|---|---|
CVE-2022-4304 | 2 Openssl, Stormshield | 4 Openssl, Endpoint Security, Sslvpn and 1 more | 2024-02-04 | N/A | 5.9 MEDIUM |
A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An attacker that had observed a genuine connection between a client and a server could use this flaw to send trial messages to the server and record the time taken to process them. After a sufficiently large number of messages the attacker could recover the pre-master secret used for the original connection and thus be able to decrypt the application data sent over that connection. |