<p>There is no fixed version for <code>Centos:7</code> <code>kernel-rt</code>.</p>

Incorrect Authorization Affecting kernel-rt package, versions *

Threat Intelligence

0.05% (21^st percentile)

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Snyk ID SNYK-CENTOS7-KERNELRT-2022008
published 26 Jul 2021
disclosed 18 Apr 2021

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Introduced: 18 Apr 2021

CVE-2021-29155 Open this link in a new tab CWE-863 Open this link in a new tab CWE-125 Open this link in a new tab

How to fix?

There is no fixed version for Centos:7 kernel-rt.

NVD Description

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

An issue was discovered in the Linux kernel through 5.11.x. 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. Specifically, for sequences of pointer arithmetic operations, the pointer modification performed by the first operation is not correctly accounted for when restricting subsequent operations.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Local
Attack Complexity (AC)

Low
Privileges Required (PR)

Low
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

High
Integrity (I)

None
Availability (A)

None

Incorrect Authorization Affecting kernel-rt package, versions *

Severity

Based on CentOS security rating