According to the versions of the linux-sgx packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : 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. (CVE-2022-4304) The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and decodes the 'name' (e.g. 'CERTIFICATE'), any header data and the payload data. If the function succeeds then the 'name_out', 'header' and 'data' arguments are populated with pointers to buffers containing the relevant decoded data. The caller is responsible for freeing those buffers. It is possible to…Read More
EulerOS 2.0 SP11 : linux-sgx (EulerOS-SA-2023-3047)
