CVE-2022-3628: Buffer Overflow
First published: Sat Oct 22 2022(Updated: )
A buffer overflow flaw was found in the Linux kernel Broadcom Full MAC Wi-Fi driver. This issue occurs when a user connects to a malicious USB device. This can allow a local user to crash the system or escalate their privileges.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <0:4.18.0-477.10.1.rt7.274.el8_8 | 0:4.18.0-477.10.1.rt7.274.el8_8 |
| redhat/kernel | <0:4.18.0-477.10.1.el8_8 | 0:4.18.0-477.10.1.el8_8 |
| 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 |
| redhat/Linux kernel | <6.1 | 6.1 |
| Linux Kernel | =6.1-rc5 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.10-1 6.12.11-1 |
Remedy
To mitigate this issue, prevent the brcmfmac module from being loaded. See https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-3628 https://nvd.nist.gov/vuln/detail/CVE-2022-3628 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/patch/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c?id=6788ba8aed4e28e90f72d68a9d794e34eac17295 https://seclists.org/oss-sec/2022/q4/60
- https://bugzilla.redhat.com/show_bug.cgi?id=2150960
- https://access.redhat.com/errata/RHSA-2023:2736
- https://access.redhat.com/errata/RHSA-2023:2951
- https://access.redhat.com/errata/RHSA-2023:2458
- https://access.redhat.com/errata/RHSA-2023:2148
- https://access.redhat.com/security/cve/cve-2022-3628
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/patch/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c?id=6788ba8aed4e28e90f72d68a9d794e34eac17295
- https://launchpad.net/bugs/cve/CVE-2022-3628
- https://seclists.org/oss-sec/2022/q4/60
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2150961
- https://access.redhat.com/errata/RHSA-2024:0412
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3628
- https://nvd.nist.gov/vuln/detail/CVE-2022-3628
- https://security-tracker.debian.org/tracker/CVE-2022-3628
- https://ubuntu.com/security/CVE-2022-3628
- https://www.openwall.com/lists/oss-security/2022/10/29/1
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the severity of CVE-2022-3628?
CVE-2022-3628 has a severity rating that indicates it poses a significant risk due to potential privilege escalation and system crashes.
How do I fix CVE-2022-3628?
To fix CVE-2022-3628, you should upgrade to the appropriate patched kernel versions provided by your distribution.
What systems are affected by CVE-2022-3628?
CVE-2022-3628 affects various Linux kernel versions including specific releases of Red Hat and Debian kernels.
What type of vulnerability is CVE-2022-3628?
CVE-2022-3628 is a buffer overflow vulnerability that can be exploited through malicious USB devices.
Can CVE-2022-3628 lead to remote attacks?
CVE-2022-3628 is primarily a local vulnerability, requiring access to the system to exploit.
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