Arbitrary Command Injection Affecting kernel-rt-core package, versions <0:4.18.0-372.9.1.rt7.166.el8


Severity

Recommended
0.0
high
0
10

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Arbitrary Command Injection vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-ROCKY8-KERNELRTCORE-3195599
  • published5 Jan 2023
  • disclosed8 Apr 2021

Introduced: 8 Apr 2021

CVE-2021-29154  (opens in a new tab)
CWE-77  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 kernel-rt-core to version 0:4.18.0-372.9.1.rt7.166.el8 or higher.
This issue was patched in RLSA-2022:1975.

NVD Description

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

BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c.

CVSS Scores

version 3.1