CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 5.5. It affects Linux.
CVE
CVE-2021-34556
Severity
MEDIUM
CVSS
5.5
EPSS
0.42%
Linux
Original NVD Description
In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack.
Related CVEs
Other vulnerabilities affecting the same vendor(s)