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FreeBSD Project FreeBSD OS: Mehrere Schwachstellen
view advisory published 2026-05-20
Ein Angreifer kann mehrere Schwachstellen in FreeBSD Project FreeBSD OS ausnutzen, um seine Privilegien zu erhöhen, um Sicherheitsvorkehrungen zu umgehen, um beliebigen Programmcode mit Administratorrechten auszuführen, und um Informationen offenzulegen.
01
describes (7)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-45255US | — | — | ||
When bsdinstall or bsdconfig are prompted to scan for nearby Wi-Fi networks, they build up a list of network names and use bsddialog(1) to prompt the user to select a network. Thi… | ||||
| CVE-2026-45254US | — | — | ||
In the case of the cap_net service, when a key present in the old limit was omitted from the new limit, the missing key was treated as "allow any" instead of being rejected.
In ce… | ||||
| CVE-2026-45253US | — | — | ||
ptrace(PT_SC_REMOTE) failed to properly validate parameters for the syscall(2) and __syscall(2) meta-system calls. As a result, a user with the ability to debug a process may trig… | ||||
| CVE-2026-45252US | — | — | ||
When a fusefs file system implements extended attributes, the kernel may send a FUSE_LISTXATTR message to the userspace daemon to retrieve the list of extended attributes for a giv… | ||||
| CVE-2026-45251US | — | — | ||
A file descriptor can be closed while a thread is blocked in a poll(2) or select(2) call waiting for that descriptor. Because the blocked thread does not hold a reference to the u… | ||||
| CVE-2026-39461US | — | — | ||
libcasper(3) communicates with helper processes via UNIX domain sockets, and uses the select(2) system call to wait for data to become available. However, it does not verify that… | ||||
| CVE-2026-45250US | — | Exploit | ||
The setcred(2) system call is only available to privileged users. However, before the privilege level of the caller is checked, the user-supplied list of supplementary groups is c… | ||||
02
references
External citations — patches, advisories, analysis.
- FreeBSD Security Advisory FreeBSD-SA-26:18.setcred vom 2026-05-20external
- FreeBSD Security Advisory FreeBSD-SA-26:19.file vom 2026-05-20external
- FreeBSD Security Advisory FreeBSD-SA-26:20.fusefs vom 2026-05-20external
- FreeBSD Security Advisory FreeBSD-SA-26:21.ptrace vom 2026-05-20external
- FreeBSD Security Advisory FreeBSD-SA-26:22.libcasper vom 2026-05-20external
- FreeBSD Security Advisory FreeBSD-SA-26:23.bsdinstall vom 2026-05-20external
- FreeBSD Security Advisory FreeBSD-SA-26:24.cap_net vom 2026-05-20external
- WID-SEC-W-2026-1628 - CSAF Versionself
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