Information Exposure Affecting python3-perf package, versions <0:4.18.0-348.el8


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-CENTOS8-PYTHON3PERF-2138532
  • published26 Jul 2021
  • disclosed30 Apr 2021

Introduced: 30 Apr 2021

CVE-2021-31829  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Centos:8 python3-perf to version 0:4.18.0-348.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-perf package and not the python3-perf package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads, leading to disclosure of stack content via side-channel attacks, aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also, the BPF stack can contain uninitialized data that might represent sensitive information previously operated on by the kernel.

CVSS Scores

version 3.1