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 Software | Affected Version | How 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 6.1.133-1 6.12.22-1 |
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.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-3640 https://nvd.nist.gov/vuln/detail/CVE-2022-3640 https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=42cf46dea905a80f6de218e837ba4d4cc33d6979
- https://bugzilla.redhat.com/show_bug.cgi?id=2139610
- https://access.redhat.com/errata/RHSA-2023:2458
- https://access.redhat.com/errata/RHSA-2023:2148
- https://access.redhat.com/security/cve/cve-2022-3640
- https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=42cf46dea905a80f6de218e837ba4d4cc33d6979
- https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html
- https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DGOIRR72OAFE53XZRUDZDP7INGLIC3E3/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OD7VWUT7YAU4CJ247IF44NGVOAODAJGC/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XG2UPX3MQ7RKRJEUMGEH2TLPKZJCBU5C/
- https://vuldb.com/?id.211944
- https://launchpad.net/bugs/cve/CVE-2022-3640
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2139614
- https://access.redhat.com/errata/RHSA-2023:6901
- https://access.redhat.com/errata/RHSA-2023:7077
- https://access.redhat.com/errata/RHSA-2024:1877
- https://access.redhat.com/errata/RHSA-2024:2621
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OD7VWUT7YAU4CJ247IF44NGVOAODAJGC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DGOIRR72OAFE53XZRUDZDP7INGLIC3E3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG2UPX3MQ7RKRJEUMGEH2TLPKZJCBU5C/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3640
- https://nvd.nist.gov/vuln/detail/CVE-2022-3640
- https://security-tracker.debian.org/tracker/CVE-2022-3640
- https://ubuntu.com/security/CVE-2022-3640
- https://git.kernel.org/linus/0d0e2d032811280b927650ff3c15fe5020e82533
- https://www.ibm.com/support/pages/node/7172423 (Advisory)
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.
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