Improper Zeroization of Hardware Register Affecting bpftool package, versions <0:3.10.0-1160.99.1.el7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
5.79% (93rd percentile)

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  • Snyk IDSNYK-RHEL7-BPFTOOL-7979633
  • published14 Sept 2024
  • disclosed25 Jul 2023

Introduced: 25 Jul 2023

CVE-2023-20593  (opens in a new tab)
CWE-1239  (opens in a new tab)

How to fix?

Upgrade RHEL:7 bpftool to version 0:3.10.0-1160.99.1.el7 or higher.
This issue was patched in RHSA-2023:4819.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information.

References

CVSS Base Scores

version 3.1