CVE-2019-12904: gnupg libgcrypt Exposure of Resource to Wrong Sphere

Vulnerability summary

CVE-2019-12904 is a medium (CVSS 5.9) Exposure of Resource to Wrong Sphere vulnerability in gnupg libgcrypt. EPSS estimates a 2.21% chance of exploitation in the next 30 days, higher than 82.3% of scored vulnerabilities.

Timeline

1. 19-06-2019
   PublishedVulnerability first disclosed.
2. 14-10-2026
   Last modifiedVulnerability information updated.

Description

In Libgcrypt 1.8.4, the C implementation of AES is vulnerable to a flush-and-reload side-channel attack because physical addresses are available to other processes. (The C implementation is used on platforms where an assembly-language implementation is unavailable.) NOTE: the vendor's position is that the issue report cannot be validated because there is no description of an attack

• CWE-668Exposure of Resource to Wrong SphereThe product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.