CVE-2021-33560
Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. This, for example, affects use of ElGamal in OpenPGP.
- CVSS 3.1
- 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - EPSS
- 2.4% chance of exploitation in the next 30 days; higher than 83% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-203, CWE-325
- Published
- Modified
- Record from
- the NVD, synced
Affected
- debian:debian_linux
- fedoraproject:fedora
- gnupg:libgcrypt
- oracle:communications_cloud_native_core_binding_support_function
- oracle:communications_cloud_native_core_network_function_cloud_native_environment
- oracle:communications_cloud_native_core_network_repository_function
- oracle:communications_cloud_native_core_network_slice_selection_function
- oracle:communications_cloud_native_core_service_communication_proxy