Use After Free Affecting kernel-rt-debug-modules-extra package, versions <0:5.14.0-284.11.1.rt14.296.el9_2


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.12% (47th percentile)

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  • Snyk IDSNYK-ALMALINUX9-KERNELRTDEBUGMODULESEXTRA-5622267
  • published28 May 2023
  • disclosed9 May 2023

Introduced: 9 May 2023

CVE-2022-42896  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 kernel-rt-debug-modules-extra to version 0:5.14.0-284.11.1.rt14.296.el9_2 or higher.
This issue was patched in ALSA-2023:2148.

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 AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_connect and l2cap_le_connect_req functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth. A remote attacker could execute code leaking kernel memory via Bluetooth if within proximity of the victim.

We recommend upgrading past commit  https://www.google.com/url https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4 https://www.google.com/url

CVSS Scores

version 3.1