188 matches found
FreeBSD -- bhyve(8) out-of-bounds read access via XHCI emulation
Problem Description: bhyve can be configured to emulate devices on a virtual USB controller XHCI, such as USB tablet devices. An insufficient boundary validation in the USB code could lead to an out-of-bounds read on the heap, which could potentially lead to an arbitrary write and remote code...
FreeBSD-SA-24:15.bhyve
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-24:15.bhyve Security Advisory The FreeBSD Project Topic: bhyve8 out-of-bounds read access via XHCI emulation Category: core Module: bhyve Announced: 2024-09-19...
FreeBSD : FreeBSD -- bhyve(8) privileged guest escape via USB controller (4edaa9f4-6b51-11ef-9a62-002590c1f29c)
The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 4edaa9f4-6b51-11ef-9a62-002590c1f29c advisory. bhyve can be configured to emulate devices on a virtual USB controller XHCI, such as USB tablet devices...
FreeBSD : FreeBSD -- bhyve(8) privileged guest escape via TPM device passthrough (56d76414-6b50-11ef-9a62-002590c1f29c)
The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 56d76414-6b50-11ef-9a62-002590c1f29c advisory. bhyve can be configured to provide access to the host's TPM device, where it passes the communication...
FreeBSD : FreeBSD -- Multiple issues in ctl(4) CAM Target Layer (9bd5e47b-6b50-11ef-9a62-002590c1f29c)
The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 9bd5e47b-6b50-11ef-9a62-002590c1f29c advisory. Several vulnerabilities were found in the ctl subsystem. The function ctlwritebuffer incorrect...
CVE-2024-8178
The ctlwritebuffer and ctlreadbuffer functions allocated memory to be returned to userspace, without initializing it. Malicious software running in a guest VM that exposes virtioscsi can exploit the vulnerabilities to achieve code execution on the host in the bhyve userspace process, which...
CVE-2024-45063
The function ctlwritebuffer incorrectly set a flag which resulted in a kernel Use-After-Free when a command finished processing. Malicious software running in a guest VM that exposes virtioscsi can exploit the vulnerabilities to achieve code execution on the host in the bhyve userspace process,...
CVE-2024-32668
An insufficient boundary validation in the USB code could lead to an out-of-bounds write on the heap, with data controlled by the caller. A malicious, privileged software running in a guest VM can exploit the vulnerability to achieve code execution on the host in the bhyve userspace process, whic...
CVE-2024-43110
The ctlrequestsense function could expose up to three bytes of the kernel heap to userspace. Malicious software running in a guest VM that exposes virtioscsi can exploit the vulnerabilities to achieve code execution on the host in the bhyve userspace process, which typically runs as root. Note th...
CVE-2024-42416
The ctlreportsupportedopcodes function did not sufficiently validate a field provided by userspace, allowing an arbitrary write to a limited amount of kernel help memory. Malicious software running in a guest VM that exposes virtioscsi can exploit the vulnerabilities to achieve code execution on...
CVE-2024-8178
The ctlwritebuffer and ctlreadbuffer functions allocated memory to be returned to userspace, without initializing it. Malicious software running in a guest VM that exposes virtioscsi can exploit the vulnerabilities to achieve code execution on the host in the bhyve userspace process, which...
CVE-2024-32668
An insufficient boundary validation in the USB code could lead to an out-of-bounds write on the heap, with data controlled by the caller. A malicious, privileged software running in a guest VM can exploit the vulnerability to achieve code execution on the host in the bhyve userspace process, whic...
CVE-2024-43110
The ctlrequestsense function could expose up to three bytes of the kernel heap to userspace. Malicious software running in a guest VM that exposes virtioscsi can exploit the vulnerabilities to achieve code execution on the host in the bhyve userspace process, which typically runs as root. Note th...
CVE-2024-32668
CVE-2024-32668 describes an out-of-bounds heap write due to insufficient boundary validation in the USB code of bhyve (FreeBSD). A privileged guest VM can exploit this to execute code on the host inside the bhyve userspace process (usually running as root); bhyve operates under a Capsicum sandbox...
CVE-2024-32668 bhyve(8) privileged guest escape via USB controller
An insufficient boundary validation in the USB code could lead to an out-of-bounds write on the heap, with data controlled by the caller. A malicious, privileged software running in a guest VM can exploit the vulnerability to achieve code execution on the host in the bhyve userspace process, whic...
CVE-2024-32668 bhyve(8) privileged guest escape via USB controller
An insufficient boundary validation in the USB code could lead to an out-of-bounds write on the heap, with data controlled by the caller. A malicious, privileged software running in a guest VM can exploit the vulnerability to achieve code execution on the host in the bhyve userspace process, whic...
CVE-2024-45063 Multiple issues in ctl(4) CAM Target Layer
The function ctlwritebuffer incorrectly set a flag which resulted in a kernel Use-After-Free when a command finished processing. Malicious software running in a guest VM that exposes virtioscsi can exploit the vulnerabilities to achieve code execution on the host in the bhyve userspace process,...
CVE-2024-45063
The CVE-2024-45063 issue affects FreeBSD ctl(4) CAM Target Layer. The root cause is that ctl_write_buffer incorrectly sets a flag, causing a kernel Use-After-Free when a command finishes processing. The advisory describes guest VMs exposing virtio_scsi accessing the kernel via bhyve, enabling cod...
CVE-2024-45063 Multiple issues in ctl(4) CAM Target Layer
The function ctlwritebuffer incorrectly set a flag which resulted in a kernel Use-After-Free when a command finished processing. Malicious software running in a guest VM that exposes virtioscsi can exploit the vulnerabilities to achieve code execution on the host in the bhyve userspace process,...
CVE-2024-43110 Multiple issues in ctl(4) CAM Target Layer
The ctlrequestsense function could expose up to three bytes of the kernel heap to userspace. Malicious software running in a guest VM that exposes virtioscsi can exploit the vulnerabilities to achieve code execution on the host in the bhyve userspace process, which typically runs as root. Note th...