Information Exposure Affecting bpftool package, versions <0:4.18.0-147.8.1.el8_1


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.11% (46th percentile)

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  • Snyk IDSNYK-RHEL8-BPFTOOL-3651741
  • published26 Jul 2021
  • disclosed28 Nov 2019

Introduced: 28 Nov 2019

CVE-2019-18660  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade RHEL:8 bpftool to version 0:4.18.0-147.8.1.el8_1 or higher.
This issue was patched in RHSA-2020:1372.

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:8 relevant fixed versions and status.

The Linux kernel before 5.4.1 on powerpc allows Information Exposure because the Spectre-RSB mitigation is not in place for all applicable CPUs, aka CID-39e72bf96f58. This is related to arch/powerpc/kernel/entry_64.S and arch/powerpc/kernel/security.c.

CVSS Scores

version 3.1