CVE-2024-43110: Multiple issues in ctl(4) CAM Target Layer
First published: Thu Sep 05 2024(Updated: )
The ctl_request_sense function could expose up to three bytes of the kernel heap to userspace. Malicious software running in a guest VM that exposes virtio_scsi can exploit the vulnerabilities to achieve code execution on the host in the bhyve userspace process, which typically runs as root. Note that bhyve runs in a Capsicum sandbox, so malicious code is constrained by the capabilities available to the bhyve process. A malicious iSCSI initiator could achieve remote code execution on the iSCSI target host.
Credit: secteam@freebsd.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FreeBSD Kernel | >=13.0<13.3 | |
| FreeBSD Kernel | =13.3 | |
| FreeBSD Kernel | =13.3-p1 | |
| FreeBSD Kernel | =13.3-p2 | |
| FreeBSD Kernel | =13.3-p3 | |
| FreeBSD Kernel | =13.3-p4 | |
| FreeBSD Kernel | =13.3-p5 | |
| FreeBSD Kernel | =13.4-beta3 | |
| FreeBSD Kernel | =14.0 | |
| FreeBSD Kernel | =14.0-beta5 | |
| FreeBSD Kernel | =14.0-p1 | |
| FreeBSD Kernel | =14.0-p2 | |
| FreeBSD Kernel | =14.0-p3 | |
| FreeBSD Kernel | =14.0-p4 | |
| FreeBSD Kernel | =14.0-p5 | |
| FreeBSD Kernel | =14.0-p6 | |
| FreeBSD Kernel | =14.0-p7 | |
| FreeBSD Kernel | =14.0-p8 | |
| FreeBSD Kernel | =14.0-p9 | |
| FreeBSD Kernel | =14.0-rc3 | |
| FreeBSD Kernel | =14.0-rc4-p1 | |
| FreeBSD Kernel | =14.1 | |
| FreeBSD Kernel | =14.1-p1 | |
| FreeBSD Kernel | =14.1-p2 | |
| FreeBSD Kernel | =14.1-p3 |
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Frequently Asked Questions
What is the severity of CVE-2024-43110?
CVE-2024-43110 is considered a high severity vulnerability due to the potential for code execution on the host system.
How do I fix CVE-2024-43110?
To fix CVE-2024-43110, update your FreeBSD system to the latest patched version as recommended in security advisories.
Who is affected by CVE-2024-43110?
CVE-2024-43110 affects FreeBSD versions 13.0 to 13.3 and various 14.x releases due to the vulnerability in the ctl_request_sense function.
What can malicious software do by exploiting CVE-2024-43110?
Exploiting CVE-2024-43110 allows malicious software running in a guest VM to execute arbitrary code on the FreeBSD host.
What is the nature of the CVE-2024-43110 vulnerability?
CVE-2024-43110 is a vulnerability that could expose sensitive kernel heap memory to user space, creating security risks.
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- vendor/freebsd
- canonical/freebsd kernel
- version/freebsd kernel/13.0
- version/freebsd kernel/13.3
- version/freebsd kernel/13.3-p1
- version/freebsd kernel/13.3-p2
- version/freebsd kernel/13.3-p3
- version/freebsd kernel/13.3-p4
- version/freebsd kernel/13.3-p5
- version/freebsd kernel/13.4-beta3
- version/freebsd kernel/14.0
- version/freebsd kernel/14.0-beta5
- version/freebsd kernel/14.0-p1
- version/freebsd kernel/14.0-p2
- version/freebsd kernel/14.0-p3
- version/freebsd kernel/14.0-p4
- version/freebsd kernel/14.0-p5
- version/freebsd kernel/14.0-p6
- version/freebsd kernel/14.0-p7
- version/freebsd kernel/14.0-p8
- version/freebsd kernel/14.0-p9
- version/freebsd kernel/14.0-rc3
- version/freebsd kernel/14.0-rc4-p1
- version/freebsd kernel/14.1
- version/freebsd kernel/14.1-p1
- version/freebsd kernel/14.1-p2
- version/freebsd kernel/14.1-p3