发布于3月6日3月6日 Members Amazon Linux AMI 2: CVE-2022-4304: Security patch for edk2, openssl, openssl-snapsafe, openssl11 (Multiple Advisories) Severity 7 CVSS (AV:N/AC:M/Au:N/C:C/I:N/A:N) Published 02/09/2023 Created 02/10/2023 Added 02/09/2023 Modified 01/28/2025 Description 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. Solution(s) amazon-linux-ami-2-upgrade-edk2-aarch64 amazon-linux-ami-2-upgrade-edk2-debuginfo amazon-linux-ami-2-upgrade-edk2-ovmf amazon-linux-ami-2-upgrade-edk2-tools amazon-linux-ami-2-upgrade-edk2-tools-doc amazon-linux-ami-2-upgrade-edk2-tools-python amazon-linux-ami-2-upgrade-openssl amazon-linux-ami-2-upgrade-openssl-debuginfo amazon-linux-ami-2-upgrade-openssl-devel amazon-linux-ami-2-upgrade-openssl-libs amazon-linux-ami-2-upgrade-openssl-perl amazon-linux-ami-2-upgrade-openssl-snapsafe amazon-linux-ami-2-upgrade-openssl-snapsafe-debuginfo amazon-linux-ami-2-upgrade-openssl-snapsafe-devel amazon-linux-ami-2-upgrade-openssl-snapsafe-libs amazon-linux-ami-2-upgrade-openssl-snapsafe-perl amazon-linux-ami-2-upgrade-openssl-snapsafe-static amazon-linux-ami-2-upgrade-openssl-static amazon-linux-ami-2-upgrade-openssl11 amazon-linux-ami-2-upgrade-openssl11-debuginfo amazon-linux-ami-2-upgrade-openssl11-devel amazon-linux-ami-2-upgrade-openssl11-libs amazon-linux-ami-2-upgrade-openssl11-static References https://attackerkb.com/topics/cve-2022-4304 AL2/ALAS-2023-1934 AL2/ALAS-2023-1935 AL2/ALAS-2024-2502 AL2/ALASOPENSSL-SNAPSAFE-2023-002 CVE - 2022-4304
