CVE-2024-2236

A timing-based side-channel flaw was found in libgcrypt's RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA ciphertexts.

• libgcrypt20 (unimportant; bug https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1065683) https://bugzilla.redhat.com/show_bug.cgi?id=2268268 https://lists.gnupg.org/pipermail/gcrypt-devel/2024-March/005607.html https://github.com/tomato42/marvin-toolkit/tree/master/example/libgcrypt https://people.redhat.com/~hkario/marvin/ https://dev.gnupg.org/T7136 https://gitlab.com/redhat-crypto/libgcrypt/libgcrypt-mirror/-/merge_requests/17 Not in scope for libgcrypt security policy, work ongoing to add support in the protocol layer