Amazon Linux 2023 Security Advisory: ALAS-2023-171
Advisory Release Date: 2023-04-27 20:00 Pacific
Advisory Updated Date: 2023-05-03 13:23 Pacific
Severity:
Important
Issue Overview:
A timing side-channel vulnerability was found in RSA ClientKeyExchange messages in GnuTLS. This side-channel may be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption, the attacker would need to send a large amount of specially crafted messages to the vulnerable server. By recovering the secret from the ClientKeyExchange message, the attacker would be able to decrypt the application data exchanged over that connection. (CVE-2023-0361)
Affected Packages:
gnutls
Issue Correction:
Run dnf update gnutls --releasever 2023.0.20230503 to update your system.
New Packages:
aarch64:
gnutls-debuginfo-3.7.8-360.amzn2023.0.4.aarch64
gnutls-c++-debuginfo-3.7.8-360.amzn2023.0.4.aarch64
gnutls-dane-debuginfo-3.7.8-360.amzn2023.0.4.aarch64
gnutls-dane-3.7.8-360.amzn2023.0.4.aarch64
gnutls-utils-debuginfo-3.7.8-360.amzn2023.0.4.aarch64
gnutls-c++-3.7.8-360.amzn2023.0.4.aarch64
gnutls-debugsource-3.7.8-360.amzn2023.0.4.aarch64
gnutls-3.7.8-360.amzn2023.0.4.aarch64
gnutls-utils-3.7.8-360.amzn2023.0.4.aarch64
gnutls-devel-3.7.8-360.amzn2023.0.4.aarch64
src:
gnutls-3.7.8-360.amzn2023.0.4.src
x86_64:
gnutls-debuginfo-3.7.8-360.amzn2023.0.4.x86_64
gnutls-c++-debuginfo-3.7.8-360.amzn2023.0.4.x86_64
gnutls-utils-debuginfo-3.7.8-360.amzn2023.0.4.x86_64
gnutls-c++-3.7.8-360.amzn2023.0.4.x86_64
gnutls-debugsource-3.7.8-360.amzn2023.0.4.x86_64
gnutls-dane-debuginfo-3.7.8-360.amzn2023.0.4.x86_64
gnutls-dane-3.7.8-360.amzn2023.0.4.x86_64
gnutls-utils-3.7.8-360.amzn2023.0.4.x86_64
gnutls-3.7.8-360.amzn2023.0.4.x86_64
gnutls-devel-3.7.8-360.amzn2023.0.4.x86_64