FreeBSD security vulnerabilities

FreeBSD is a set of Unix-like operating systems from the FreeBSD Foundation. A security vulnerability exists in FreeBSD that stems from a malicious size value in the libnv structure that could lead to an integer overflow...

FreeBSD security vulnerabilities

FreeBSD is a set of Unix-like operating systems from the FreeBSD Foundation. A security vulnerability exists in FreeBSD that originates from malware running in a guest VM that can utilize a buffer overflow to enable code execution in a bhyve userspace process typically running as root on the host...

FreeBSD security vulnerabilities

FreeBSD is a set of Unix-like operating systems from the FreeBSD Foundation. A security vulnerability exists in FreeBSD, which stems from the ctlwritebuffer and ctlreadbuffer functions allocating memory for return to user space without initializing it...

FreeBSD resource management error vulnerabilities

FreeBSD is a set of Unix-like operating systems from the FreeBSD Foundation. A resource management error vulnerability exists in FreeBSD, which stems from the fact that concurrent deletion of certain anonymous shared memory maps using UMTXSHMDESTROY subrequests of UMTXOPSHM may cause the referenc...

FreeBSD buffer error vulnerabilities

FreeBSD is a set of Unix-like operating systems from the FreeBSD Foundation. FreeBSD suffers from a buffer error vulnerability that stems from insufficient boundary validation in the USB code that could result in out-of-bounds writes...

FreeBSD buffer error vulnerabilities

FreeBSD is a set of Unix-like operating systems from the FreeBSD Foundation. FreeBSD suffers from a buffer error vulnerability that stems from the ctlrequestsense function exposing up to three bytes of kernel heap to user space...

FreeBSD-SA-24:13.openssl

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-24:13.openssl Security Advisory The FreeBSD Project Topic: Possible DoS in X.509 name checks in OpenSSL Category: contrib Module: openssl Announced: 2024-09-03...

FreeBSD-SA-24:12.bhyve

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-24:12.bhyve Security Advisory The FreeBSD Project Topic: bhyve8 privileged guest escape via USB controller Category: core Module: bhyve Announced: 2024-09-04...

FreeBSD-SA-24:10.bhyve

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-24:10.bhyve Security Advisory The FreeBSD Project Topic: bhyve8 privileged guest escape via TPM device passthrough Category: core Module: bhyve Announced:...

FreeBSD-SA-24:09.libnv

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-24:09.libnv Security Advisory The FreeBSD Project Topic: Multiple vulnerabilities in libnv Category: core Module: libnv Announced: 2024-09-04 Credits: Taylor R...

FreeBSD-SA-24:14.umtx

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-24:14.umtx Security Advisory The FreeBSD Project Topic: umtx Kernel panic or Use-After-Free Category: core Module: kern Announced: 2024-09-04 Credits: Synacktiv...

FreeBSD-SA-24:11.ctl

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-24:11.ctl Security Advisory The FreeBSD Project Topic: Multiple issues in ctl4 CAM Target Layer Category: core Module: ctl Announced: 2024-09-04 Credits:...

PT-2024-31540 · Freebsd · Freebsd

Name of the Vulnerable Software and Affected Versions: No specific software or versions are mentioned in the provided descriptions. Description: A missing null-termination character in the last element of an nvlist array string can lead to writing outside the allocated buffer. Recommendations: At...

PT-2024-8608 · Bhyve +1 · Bhyve +1

Name of the Vulnerable Software and Affected Versions: FreeBSD affected versions not specified Description: The issue is related to the ctl request sense function in the ctl subsystem of FreeBSD operating systems, which can lead to a buffer overflow in memory. This can allow an attacker to execut...

PT-2024-5986

Name of the Vulnerable Software and Affected Versions FreeBSD affected versions not specified Description The issue is related to a use-after-free vulnerability in the UMTX OP SHM operation's handling of anonymous shared memory used for process-shared mutexes. Concurrent removals of certain...

FreeBSD -- umtx Kernel panic or Use-After-Free

Problem Description: Concurrent removals of such a mapping by using the UMTXSHMDESTROY sub-request of UMTXOPSHM can lead to decreasing the reference count of the object representing the mapping too many times, causing it to be freed too early. Impact: A malicious code exercizing the UMTXSHMDESTRO...

FreeBSD -- bhyve(8) privileged guest escape via USB controller

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 write on the heap, with data controlled by the caller. Impact: A malicious, privileged...

FreeBSD -- Multiple vulnerabilities in libnv

Problem Description: CVE-2024-45287 is a vulnerability that affects both the kernel and userland. A malicious value of size in a structure of packed libnv can cause an integer overflow, leading to the allocation of a smaller buffer than required for the parsed data. CVE-2024-45288 is a...

FreeBSD -- bhyve(8) privileged guest escape via TPM device passthrough

Problem Description: bhyve can be configured to provide access to the host's TPM device, where it passes the communication through an emulated device provided to the guest. This may be performed on the command-line by starting bhyve with the -l tpm,passthru,/dev/tpmX parameters. The MMIO handler...

FreeBSD -- Multiple issues in ctl(4) CAM Target Layer

Problem Description: Several vulnerabilities were found in the ctl subsystem. The function ctlwritebuffer incorrectly set a flag which resulted in a kernel Use-After-Free when a command finished processing CVE-2024-45063. The ctlwritebuffer and ctlreadbuffer functions allocated memory to be...