Information Exposure Affecting kernel-rt-debug-modules-extra package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-CENTOS8-KERNELRTDEBUGMODULESEXTRA-1954550
  • published26 Jul 2021
  • disclosed19 Mar 2021

Introduced: 19 Mar 2021

CVE-2020-27170  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

There is no fixed version for Centos:8 kernel-rt-debug-modules-extra.

NVD Description

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

An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This affects pointer types that do not define a ptr_limit.

CVSS Scores

version 3.1