84 matches found
CVE-2026-101311
The framebuffer device model's maximum resolution constants were duplicated between the framebuffer and RFB modules and had gotten out of sync. Additionally, writes to the framebuffer BAR could set arbitrary width and height values without validation, and the framebuffer BAR I/O and RFB rendering...
EUVD-2026-101930
The framebuffer device model's maximum resolution constants were duplicated between the framebuffer and RFB modules and had gotten out of sync. Additionally, writes to the framebuffer BAR could set arbitrary width and height values without validation, and the framebuffer BAR I/O and RFB rendering...
CVE-2026-101311
The bhyve hypervisor contains multiple vulnerabilities in its device models, specifically affecting the framebuffer device model. The issue stems from duplicated and desynchronized maximum resolution constants between the framebuffer and RFB modules. Additionally, the framebuffer BAR allows write...
CVE-2026-101309
The xHCI USB 3 device model did not validate or save the event ring size provided by the guest. The size was re-read from guest memory on each use, and Transfer Request Block TRB fields were loaded without protection against concurrent modification by the guest. This race condition could be...
EUVD-2026-101932
The xHCI USB 3 device model did not validate or save the event ring size provided by the guest. The size was re-read from guest memory on each use, and Transfer Request Block TRB fields were loaded without protection against concurrent modification by the guest. This race condition could be...
CVE-2026-101304
When fdescfs4 was mounted in a jail with the "nodup" option, opening /dev/fd/N returned a descriptor that did not inherit FDRESOLVEBENEATH or the Capsicum capability rights of descriptor N. A process in a jail that has received a directory file descriptor from another jail can use these technique...
CVE-2026-101304 Multiple jail filesystem root escapes
When fdescfs4 was mounted in a jail with the "nodup" option, opening /dev/fd/N returned a descriptor that did not inherit FDRESOLVEBENEATH or the Capsicum capability rights of descriptor N. A process in a jail that has received a directory file descriptor from another jail can use these technique...
CVE-2026-101310: Buffer Over-read
The HDA audio device model did not check for zero-length Buffer Descriptor List BDL entries when starting a stream. A zero-length entry caused an out-of-bounds read or write during DMA transfer processing. BDL fields were also subject to modification by the guest after validation. A malicious gue...
CVE-2026-101309: Concurrent Execution using Shared Resource with Improper Synchronization
The xHCI USB 3 device model did not validate or save the event ring size provided by the guest. The size was re-read from guest memory on each use, and Transfer Request Block TRB fields were loaded without protection against concurrent modification by the guest. This race condition could be...
FreeBSD Security Advisory - FreeBSD-SA-26:72.bhyve
FreeBSD Security Advisory - Multiple vulnerabilities in bhyve device models. A malicious guest can crash the bhyve process or potentially execute arbitrary code in the host userspace context running the virtual machine, subject to bhyve's Capsicum sandbox...
CVE-2026-45259
sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. A process in capability mode can use sigqueue2 to send signa...
CVE-2026-45259 sigqueue(2) missing capability mode restriction
sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. A process in capability mode can use sigqueue2 to send signa...
EUVD-2026-39963
sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. A process in capability mode can use sigqueue2 to send signa...
CVE-2026-45259
sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. A process in capability mode can use sigqueue2 to send signa...
CVE-2026-45259: Incorrect Privilege Assignment
sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. A process in capability mode can use sigqueue2 to send signa...
FreeBSD : FreeBSD -- sigqueue(2) missing capability mode restriction (94f20492-6473-11f1-958d-bc241121aa0a)
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 94f20492-6473-11f1-958d-bc241121aa0a advisory. sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the...
FreeBSD Security Advisory - FreeBSD-SA-26:28.capsicum
FreeBSD Security Advisory - sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID...
FreeBSD-SA-26:28.capsicum
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:28.capsicum Security Advisory The FreeBSD Project Topic: sigqueue2 missing capability mode restriction Category: core Module: capsicum Announced: 2026-06-09...
FreeBSD -- sigqueue(2) missing capability mode restriction
Problem Description: sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. Impact: A process in capability mode ca...
FreeBSD-SA-26:24.cap_net
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:24.capnet Security Advisory The FreeBSD Project Topic: Incorrect libcapnet limitation list manipulation Category: core Module: libcapnet Announced: 2026-05-2...