CVE-2021-33560
08.06.2021, 11:15
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.Enginsight
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| gnupg | libgcrypt | 𝑥 < 1.8.8 |
| gnupg | libgcrypt | 1.9.0 ≤ 𝑥 < 1.9.3 |
| debian | debian_linux | 9.0 |
| oracle | communications_cloud_native_core_binding_support_function | 1.11.0 |
| oracle | communications_cloud_native_core_network_function_cloud_native_environment | 1.9.0 |
| oracle | communications_cloud_native_core_network_function_cloud_native_environment | 1.10.0 |
| oracle | communications_cloud_native_core_network_repository_function | 1.14.0 |
| oracle | communications_cloud_native_core_network_repository_function | 1.15.0 |
| oracle | communications_cloud_native_core_network_repository_function | 1.15.1 |
| oracle | communications_cloud_native_core_network_slice_selection_function | 1.8.0 |
| oracle | communications_cloud_native_core_service_communication_proxy | 1.15.0 |
𝑥
= Vulnerable software versions
Debian Releases
Ubuntu Releases
Ubuntu Product | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| libgcrypt20 |
|
openSUSE / SLES Releases
openSUSE Product | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| libgcrypt-devel |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| libgcrypt20 |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| libgcrypt20-32bit |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| libgcrypt20-hmac |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| libgcrypt20-hmac-32bit |
|
Red Hat Enterprise Linux Releases
Common Weakness Enumeration
- CWE-203 - Observable DiscrepancyThe product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.
- CWE-325 - Missing Cryptographic StepThe product does not implement a required step in a cryptographic algorithm, resulting in weaker encryption than advertised by the algorithm.
References