PT-2025-45985 · Julia · Libmount Jll+2

Publicado 2025-10-27 · Atualizado 2025-10-27

OSV

A logic error was found in the libmount library of util-linux in the function that allows an unprivileged user to unmount a FUSE filesystem. This flaw allows a local user on a vulnerable system to unmount other users' filesystems that are either world-writable themselves (like /tmp) or mounted in a world-writable directory. An attacker may use this flaw to cause a denial of service to applications that use the affected filesystems.

Identificadores relacionados

JLSEC-2025-193

Produtos afetados

Libmount Jll

Libuuid Jll

Util Linux Jll

Referências · 11

• https://github.com/util-linux/util-linux/commit/166e87368ae88bf31112a30e078cceae637f4cdb · Nota
• https://security.netapp.com/advisory/ntap-20221209-0002 · Nota
• https://bugzilla.redhat.com/show_bug.cgi?id=2024628 · Nota
• https://openwall.com/lists/oss-security/2022/01/24/2 · Nota
• http://seclists.org/fulldisclosure/2022/Dec/4 · Nota
• https://access.redhat.com/security/cve/CVE-2021-3996 · Nota
• http://openwall.com/lists/oss-security/2022/11/30/2 · Nota
• http://packetstormsecurity.com/files/170176/snap-confine-must_mkdir_and_open_with_perms-Race-Condition.html · Nota
• https://security.gentoo.org/glsa/202401-08 · Nota
• https://osv.dev/vulnerability/JLSEC-2025-193 · Aviso do Fabricante
• https://mirrors.edge.kernel.org/pub/linux/utils/util-linux/v2.37/v2.37.3-ReleaseNotes · Nota