Race Condition Affecting kernel-rt-debug-modules-extra package, versions <0:4.18.0-305.12.1.rt7.84.el8_4


Severity

Recommended
0.0
high
0
10

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-ROCKY8-KERNELRTDEBUGMODULESEXTRA-3288178
  • published3 Feb 2023
  • disclosed3 Mar 2022

Introduced: 3 Mar 2022

CVE-2021-3609  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 kernel-rt-debug-modules-extra to version 0:4.18.0-305.12.1.rt7.84.el8_4 or higher.
This issue was patched in RLSA-2021:3088.

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 Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

.A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges. This race condition in net/can/bcm.c in the Linux kernel allows for local privilege escalation to root.

CVSS Scores

version 3.1