Vulnerabilities > CVE-2021-33560 - Information Exposure Through Discrepancy vulnerability in multiple products

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
NONE
Availability impact
NONE

Summary

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.

Vulnerable Configurations

Part Description Count
Application
Gnupg
114
Application
Oracle
8
OS
Debian
1
OS
Fedoraproject
2

Common Weakness Enumeration (CWE)