8.8
CWE
416 119
Advisory Published
CVE Published
Updated

CVE-2022-3640: Linux Kernel Bluetooth l2cap_core.c l2cap_conn_del use after free

First published: Mon Oct 17 2022(Updated: )

A use-after-free in the function l2cap_conn_del of the file net/bluetooth/l2cap_core.c of the component Bluetooth in Linux Kernel could allow a remote authenticated attacker from within the local network to cause an unknown impact.

Credit: cna@vuldb.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel<0:5.14.0-284.11.1.el9_2
0:5.14.0-284.11.1.el9_2
redhat/kernel-rt<0:5.14.0-284.11.1.rt14.296.el9_2
0:5.14.0-284.11.1.rt14.296.el9_2
IBM Security Verify Governance - Identity Manager<=ISVG 10.0.2
IBM Security Verify Governance - Identity Manager<=ISVG 10.0.2
Linux Kernel>=4.9.326<4.9.333
Linux Kernel>=4.14.291<4.14.299
Linux Kernel>=4.19.255<4.19.265
Linux Kernel>=5.4.209<5.4.224
Linux Kernel>=5.10.135<5.10.154
Linux Kernel>=5.15.59<5.15.79
Linux Kernel>=5.18.16<6.0.8
Red Hat Fedora=35
Red Hat Fedora=36
Red Hat Fedora=37
Debian Linux=10.0
debian/linux
5.10.223-1
5.10.234-1
6.1.129-1
6.1.128-1
6.12.20-1
6.12.21-1

Remedy

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2022-3640?

    CVE-2022-3640 is considered a significant security vulnerability due to its potential exploitation by remote authenticated attackers.

  • How do I fix CVE-2022-3640?

    To fix CVE-2022-3640, you should update to the patched kernel versions provided by your operating system vendor.

  • Which systems are affected by CVE-2022-3640?

    CVE-2022-3640 affects various versions of the Linux Kernel, particularly those up to 5.14.0-284.11.1 and similar distributions.

  • What type of vulnerability is CVE-2022-3640?

    CVE-2022-3640 is classified as a use-after-free vulnerability in the Bluetooth component of the Linux Kernel.

  • Can CVE-2022-3640 impact my network security?

    Yes, CVE-2022-3640 can potentially allow remote authenticated attackers to disrupt network security if properly exploited.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203