FreeBSD : FreeBSD -- Heap out-of-bounds access in semctl(2) (aa5f956e-8bb8-11f1-a6ab-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 aa5f956e-8bb8-11f1-a6ab-bc241121aa0a advisory. The GETALL and SETALL commands in semctl2 recorded the number of semaphores in the target set, dropped...

FreeBSD-SA-26:54.sysvsem

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:54.sysvsem Security Advisory The FreeBSD Project Topic: Heap out-of-bounds access in semctl2 Category: core Module: sysvsem Announced: 2026-07-29 Credits:...

FreeBSD -- Heap out-of-bounds access in semctl(2)

Problem Description: The GETALL and SETALL commands in semctl2 recorded the number of semaphores in the target set, dropped the lock protecting the set, allocated a buffer sized for that count, and reacquired the lock. A sequence-number check was used to verify that the set had not been replaced ...

kernel: ipc/compat*.c: reading uninitialized stack memory

The ipc subsystem in the Linux kernel before 2.6.37-rc1 does not initialize certain structures, which allows local users to obtain potentially sensitive information from kernel stack memory via vectors related to the 1 compatsyssemctl, 2 compatsysmsgctl, and 3 compatsysshmctl functions in...