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Amazon Linux AMI 2: CVE-2022-4304: Security patch for edk2, openssl, openssl-snapsafe, openssl11 (Multiple Advisories)

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Amazon Linux AMI 2: CVE-2022-4304: Security patch for edk2, openssl, openssl-snapsafe, openssl11 (Multiple Advisories)



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.


  • 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

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