FreeBSD : FreeBSD -- Multiple vulnerabilities in OpenZFS (9534b664-74e1-11f1-958d-bc241121aa0a)

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 9534b664-74e1-11f1-958d-bc241121aa0a advisory. The ZFSIOCUSERSPACEMANY ioctl, used by zfs-userspace8, truncated a 64-bit output buffer size t...

FreeBSD : FreeBSD -- Incorrect audit records for ptrace(2) syscall requests (cd658f09-74e2-11f1-958d-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 cd658f09-74e2-11f1-958d-bc241121aa0a advisory. When auditing a system call executed via ptracePTSCREMOTE, the kernel passed the return value of an...

PT-2026-70014

Name of the Vulnerable Software and Affected Versions FreeBSD affected versions not specified Description An issue exists in the kern jail set and kern jail get functions when the JAIL AT DESC flag is used. The system releases the reference to the caller's current prison before searching for the...

FreeBSD-SA-26:49.iconv

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:49.iconv Security Advisory The FreeBSD Project Topic: Multiple vulnerabilities in iconv3 Category: core Module: iconv Announced: 2026-06-30 Credits: Nick...

FreeBSD-SA-26:44.posixshm

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:44.posixshm Security Advisory The FreeBSD Project Topic: Multiple vulnerabilities in POSIX largepage objects Category: core Module: posixshm Announced:...

FreeBSD-SA-26:47.linux

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:47.linux Security Advisory The FreeBSD Project Topic: Kernel stack disclosure in Linux compatibility layer Category: core Module: linux4 Announced: 2026-06-3...

FreeBSD-SA-26:37.vm

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:37.vm Security Advisory The FreeBSD Project Topic: Use-after-free in device pager page list Category: core Module: vm Announced: 2026-06-30 Credits: slidybat...

PT-2026-55227

Name of the Vulnerable Software and Affected Versions FreeBSD affected versions not specified Description A race condition exists in the execve system call during the execution of a SUID binary. The kernel installs the new virtual address space before updating the process credentials. This create...

PT-2026-70013

Name of the Vulnerable Software and Affected Versions FreeBSD affected versions not specified Description Calling the msyncMS INVALIDATE function on a mapping of an unmanaged device object causes physical pages in the mapping range to be marked invalid while remaining in the pager's page list. A...

FreeBSD : rclone -- Unauthenticated command execution in `rclone rcd --rc-serve` via inline remote instantiation (0f3342e3-73ba-11f1-910d-3c7c3fba4204)

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 0f3342e3-73ba-11f1-910d-3c7c3fba4204 advisory. https://github.com/rclone/rclone/security/advisories/GHSA-qw24-gh76-8rvv reports: Rclone is a...

FreeBSD -- Multiple vulnerabilities in iconv(3)

Problem Description: Several encoding modules, including HZ, UTF-7, VIQR, and ZW, did not properly check the size of the caller-supplied output buffer before writing converted characters. CVE-2026-58081 The ISO-2022 encoding module used a stack buffer sized to MBLENMAX 6 bytes for intermediate...

FreeBSD -- Use-after-free in device pager page list

Problem Description: When msyncMSINVALIDATE is called on a mapping of an unmanaged device object, the physical pages in the mapping range are marked invalid but remain in the pager's page list. A subsequent page fault will cause the fault handler to re-insert the page into the object's list. This...

PT-2026-55922

Name of the Vulnerable Software and Affected Versions FreeBSD affected versions not specified Description A use-after-free issue exists in the tcp rack.ko module of the TCP RACK setsockopt2 handler. The handler releases the connection lock to copy option data from userspace and subsequently...

PT-2026-71930

Name of the Vulnerable Software and Affected Versions FreeBSD affected versions not specified Description An issue exists in the implementation of largepage shared memory objects where pages were not explicitly wired. When the sendfile2 function transmits such an object using the SF NOCACHE flag,...

FreeBSD Security Advisory - FreeBSD-SA-26:44.posixshm

FreeBSD Security Advisory - Pages belonging to largepage shared memory objects were not explicitly wired. When sendfile2 transmitted such an object with the SFNOCACHE flag, it freed the underlying pages after transmission even though existing mappings still referred to them. Separately, certain...

PT-2026-71933

Name of the Vulnerable Software and Affected Versions FreeBSD affected versions not specified Description Insufficient input validation in the implementation of largepage shared memory objects allows an unprivileged local user to access freed kernel memory. This occurs because certain system call...

FreeBSD : PostgresSQL JDBC -- Silent channel-binding authentication downgrade via unsupported certificate algorithms (7701f760-745c-11f1-bc50-6cc21735f730)

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 7701f760-745c-11f1-bc50-6cc21735f730 advisory. PostgreSQL project reports: channelBinding=require connections can be silently downgraded from...

FreeBSD -- unlinkat(2) ignores AT_RESOLVE_BENEATH flag

Problem Description: The kernel function that implements unlinkat2 and funlinkat2 validated the ATRESOLVEBENEATH flag but failed to pass it through to the underlying path lookup. The flag was silently dropped, so path resolution was not actually restricted. Impact: A process that uses...

FreeBSD -- Local privilege escalation via execve(2) TOCTOU race

Problem Description: During execve2 of a SUID binary, the new virtual address space is installed before the process credentials are updated. During this window, a process running as the same user can access the target process's memory via procfs or linprocfs, because the kernel's debugging...

FreeBSD -- Multiple vulnerabilities in OpenZFS

Problem Description: The ZFSIOCUSERSPACEMANY ioctl, used by zfs-userspace8, truncated a 64-bit output buffer size to a 32-bit integer for the kernel allocation, but used the original 64-bit size as the buffer limit when writing records. The ZFSIOCRECVNEW ioctl, in the heal receive path, similarly...