CVE-2019-20794

Katalog CVE

CVSS 4.7 · Medium EPSS 0,51%

Kerentanan Missing Release of Resource after Effective Lifetime pada linux kernel. Skor CVSS 3.1 4.7 (Medium) menurut NVD.

Deskripsi (NVD)

An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID namespace's pid 1, it will result in a hung task, and resources being permanently locked up until system reboot. This can result in resource exhaustion.

Rincian

Terbit di NVD

9 Mei 2020

Terakhir diubah

8 Oktober 2026

Status NVD

Modified

CVSS 3.1

4.7 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-772: Missing Release of Resource after Effective Lifetime

EPSS (30 hari)

0,51% peluang dieksploitasi; lebih tinggi dari 42,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• http://www.openwall.com/lists/oss-security/2020/08/24/1 mailing list · advisory pihak ketiga
• https://github.com/sargun/fuse-example exploit · advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20200608-0001/ advisory pihak ketiga
• https://sourceforge.net/p/fuse/mailman/message/36598753/ exploit · advisory pihak ketiga