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Use After Free Affecting kernel-64k-debug-modules-core package, versions <0:5.14.0-284.11.1.el9_2

Severity

 Recommended
0.0
high
0
10

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    0.16% (54th percentile)

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  • Snyk ID SNYK-ALMALINUX9-KERNEL64KDEBUGMODULESCORE-5644144
  • published 28 May 2023
  • disclosed 9 May 2023
Report a new vulnerability Found a mistake?

Introduced: 9 May 2023

CVE-2022-42896 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:9 kernel-64k-debug-modules-core to version 0:5.14.0-284.11.1.el9_2 or higher.
This issue was patched in ALSA-2023:2458.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-64k-debug-modules-core package and not the kernel-64k-debug-modules-core 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
Expand this section

NVD

8.8 high
  • Attack Vector (AV)
    Adjacent
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

SUSE

6.8 medium
Expand this section

Red Hat

8.1 high